Free Forex Calculator

Forex Position Size & Pip Value Calculator

This free forex calculator works out your lot size, pip value and margin from your account size, risk and stop loss, for 51 currency pairs, gold, silver, US30 and NAS100, on live exchange rates. Then it matches you with the prop firms whose drawdown, daily loss and leverage fit the trade.

55Pairs, metals & indices
31Prop firms matched
LiveDaily exchange rates
FreeNo sign-up needed
01

Pair & currency

Choose what you trade and the currency your account is in.

Approximate rate. You can type the current market rate.
02

Risk & stop

Your account size and risk set the lot size, and decide which firms fit.

Account & risk

Stop & target

Leave blank to size from your risk.
Quick risk presets
03

Your position

Updates as you type.

Risk per trade$0.00
Standard Lots
0.00
100,000 units
Mini Lots
0.00
10,000 units
Micro Lots
0.00
1,000 units
Units
0
base currency
Pip value, 1 standard lot$0.00
Pip value, your size$0.00
Margin required$0.00
Reward : risk0.00
Profit: $0.00
Loss: -$0.00
Break-even win rate—
Stop size—
Losses to max drawdown—
Stops per daily limit—
Best fit for this trade Enter your account size, risk and stop to see the prop firm that fits best. See all matches

Firms that fit these numbers

Enter your trade above and we'll match you to prop firms that suit your risk.

How to Use a Forex Position Size Calculator

Position sizing is the single most important factor in managing risk across your forex trades. It doesn't matter how good your entry signal is—if you're risking too much per trade, one bad loss can set you back weeks. This calculator takes the guesswork out by converting your risk parameters into the exact lot size you should be trading, adjusted for your account size, stop loss distance, and the specific currency pair.

What Is a Pip?

A pip (percentage in point) is the smallest standard price movement in a forex quote. For most currency pairs like EUR/USD or GBP/USD, one pip equals 0.0001. For JPY pairs like USD/JPY, one pip equals 0.01 because the yen is quoted to two decimal places. Understanding pip values is critical because your risk management depends on knowing exactly how much each pip costs in dollar terms at your chosen lot size.

Position Sizing Formula

The calculation works in three steps. First, determine your risk amount: multiply your account size by your risk percentage (e.g., $100,000 × 1% = $1,000 risk). Second, calculate the pip value for a standard lot on your pair and account currency. Third, divide the risk amount by (stop loss in pips × pip value per unit) to get your position size in units, which you then convert to standard, mini, or micro lots.

For a pair where your account currency is the quote currency (like EUR/USD with a USD account), the pip value per standard lot is simply $10. For pairs where USD is the base currency (like USD/JPY), the pip value equals $10 divided by the current exchange rate. Cross pairs require an additional conversion step—which this calculator handles automatically.

Why This Matters for Forex Prop Firm Traders

Forex prop firms like FXIFY, FTMO, Funded Trading Plus, and Goat Funded Trader all impose strict drawdown limits—typically 5-10% maximum loss. If you're not calculating your position size before every trade, you're guessing with someone else's money. A proper position size calculator ensures you never risk more than your plan allows per trade, which is the foundation of passing evaluations and keeping funded accounts.

Combined with a solid understanding of prop firm rules and a consistency strategy, precise position sizing transforms your trading from gambling into a repeatable process. If you're still deciding which firm to trade with, compare forex prop firms side-by-side or check the latest forex prop firm deals and discounts to save on your next evaluation.

Quick Reference: Standard Pip Values (USD Account)

Pair Pip Size Pip Value (1 Std Lot) Pip Value (1 Mini Lot) Pip Value (1 Micro Lot)
EUR/USD0.0001$10.00$1.00$0.10
GBP/USD0.0001$10.00$1.00$0.10
AUD/USD0.0001$10.00$1.00$0.10
NZD/USD0.0001$10.00$1.00$0.10
USD/JPY0.01≈$6.69*≈$0.67≈$0.07
USD/CHF0.0001≈$11.36*≈$1.14≈$0.11
USD/CAD0.0001≈$7.35*≈$0.74≈$0.07
EUR/GBP0.0001≈$12.65*≈$1.27≈$0.13
GBP/JPY0.01≈$6.69*≈$0.67≈$0.07

*Approximate values—actual pip value varies with live exchange rates. Use the calculator above for accurate, real-time conversions.

Gold, Silver and Index Lot Size (XAU/USD, US30, NAS100)

Gold and indices are not sized in pips the way currency pairs are. On XAU/USD one standard lot is 100 ounces, so every $1 move in the gold price is worth $100 per lot. To risk $1,000 with a $5 stop you would trade $1,000 ÷ ($5 × 100) = 2.00 lots. Silver (XAG/USD) works the same way with 5,000 ounces per lot.

Indices such as US30 and NAS100 are sized in points, and the dollar value of a point per lot depends on the firm’s platform: commonly $1, but some use $5 or $10. Pick the instrument above and the calculator switches to a price move or points, with an editable contract size so you can match your firm’s symbol specification exactly. The same drawdown and daily loss checks then apply when it matches you with prop firms.

Leverage & Margin

Leverage determines how much capital you need to hold a position. At 1:100 leverage, a standard lot (100,000 units) of EUR/USD requires only $1,000 in margin. At 1:30 (common in regulated EU brokers), the same position requires about $3,333. The calculator shows your exact margin requirement based on the leverage and lot size you select, helping you avoid margin calls and overleveraging — two of the biggest account killers in forex trading. See our drawdown types guide to understand how different firms calculate your daily loss limit.

Reward-to-Risk Ratio

Your take profit and stop loss pips determine your reward-to-risk ratio. Most professional traders and prop firm mentors recommend a minimum of 2:1—meaning your potential profit is at least twice your potential loss. The calculator visualizes this instantly, so you can evaluate whether a setup is worth taking before you enter. For more on optimizing your risk metrics, check our Futures Calculator if you also trade futures, or our full trading tools library. Ready to pick a firm? Our forex prop firm comparison breaks down rules, pricing, and payouts across all the top firms.

Drawdown, daily loss and leverage at every forex prop firm

Position size only matters next to your firm’s limits. This table lists the max drawdown, daily loss limit and leverage across the programs of all 31 forex prop firms we review. As a rule of thumb, a single trade should risk a small slice of the max drawdown and stay well inside the daily loss limit, which is exactly what the matcher above checks.

Max drawdown, daily loss and leverage by firm
Max drawdown, daily loss limit and leverage for every forex prop firm we review
Prop firmAccount sizesMax drawdownDaily loss limitLeverageDrawdown type
Alpha Capital2.5K – 200K4% – 10%3% – 5%1:30 – 1:100EOD TrailingStatic
AquaFunded2.5K – 400K3% – 10%3% – 5% (none on some)1:50 – 1:100EOD TrailingStatic
Atlas Funded5K – 400K4% – 10%2% – 5% (none on some)1:50 – 1:100EOD TrailingStaticEquity Trailing
Blue Guardian5K – 400K6% – 10%3% – 4%1:30 – 1:100StaticEOD Trailing
Blueberry Funded1.25K – 200K4% – 10%2% – 5% (none on some)1:30 – 1:50EOD TrailingStatic
BrightFunded5K – 200K6% – 10%3% – 5%1:100EOD TrailingStatic
City Traders Imperium2.5K – 100K5% – 10%5% (none on some)1:30StaticEOD Trailing
Core Funded5K – 500K5% – 12%3% – 5% (none on some)1:100Static
Crypto Fund Trader2.5K – 200K6% – 10%4% – 5%1:30 – 1:100StaticEOD Trailing
E8 Markets5K – 500K6%2.5% – 4%1:30Trailing BalanceStatic
For Traders3K – 100K5% – 8%3% – 4% (none on some)1:10 – 1:30EOD TrailingStatic
FTMO5K – 200K10%3% – 5%1:30 – 1:100StaticEOD TrailingIntraday Trailing
Funded Trading Plus5K – 200K6% – 8%4% – 6%1:30 – 1:50EOD TrailingStatic
FundedElite5K – 400K6% – 14%3% – 5%1:100StaticEOD Trailing
FundedNext2K – 200K4% – 10%3% – 5% (none on some)1:30 – 1:100StaticTrailing Balance
FundingPips5K – 200K5% – 12%3% – 5%1:50 – 1:100EOD TrailingStatic
FXIFY1K – 400K4% – 10%3% – 8%1:30 – 1:50EOD TrailingStatic
Goat Funded Trader2.5K – 400K5% – 10%3% – 5%1:50EOD TrailingStatic
Hola Prime5K – 300K6% – 10%3% – 5%1:50 – 1:100StaticEOD Trailing
Instant Funding0.625K – 200K4% – 10%2% – 4% (none on some)1:30 – 1:100EOD TrailingStatic
Maven Trading2K – 100K3% – 10%2% – 4% (none on some)1:75EOD TrailingStatic
Ment Funding25K – 2M6%5%1:20Static
NYS Markets5K – 200K4% – 10%3% – 5% (none on some)1:50 – 1:100Intraday TrailingEOD TrailingStatic
OneFunded5K – 200K6% – 10%3% – 5%1:100Static
PineX Capital5K – 300K6% – 10%3% – 4% (none on some)1:30 – 1:50StaticEOD Trailing
PipFarm2.5K – 150K4% – 10%3% – 5% (none on some)1:30EOD TrailingPayout TrailingEquity TrailingStatic
QT Funded5K – 200K6% – 8%3% – 4%1:30 – 1:100StaticEOD Trailing
The5ers2.5K – 250K5% – 10%3% – 5% (none on some)1:30 – 1:100Static
ThinkCapital2.5K – 100K6% – 8%3% – 4%1:30 – 1:100EOD TrailingStaticEquity Trailing
Top One Trader5K – 300K5% – 9%2.5% – 4% (none on some)1:30 – 1:100EOD TrailingStatic
Trade The Pool2K – 200K3% – 7%1% – 3%—Static

For rules beyond the numbers, such as news trading, weekend holding and EAs, see the prop firm rules comparison, compare prices on the forex comparison tool, or grab a code on forex deals.

Common Forex Prop Firm Scenarios in 2026

The math behind position sizing is simple. Applying it under live prop firm drawdown rules is where most traders slip. Below are three worked examples that show how to use this calculator to size trades that protect your evaluation and your funded account. All figures assume a USD-denominated account and the standard $10-per-pip value on EUR/USD unless noted.

Scenario 1: Sizing to a Daily Loss Limit

Setup: Your daily loss limit is $2,000 on a $100K account (a 2% limit). Your personal rule is "no single trade risks more than 25% of the daily limit," which is $500. You trade EUR/USD with a 40-pip stop. What lot size fits?

Max risk per trade: $2,000 × 25% = $500
Pip value needed: $500 ÷ 40 pips = $12.50 per pip
Lot size: $12.50 ÷ $10 per pip (std lot) = 1.25 standard lots
✅ Action: Trade about 1.25 standard lots. If your strategy needs a 60-pip stop instead, the same $500 risk drops you to roughly 0.83 lots. Size from the stop, not from a fixed lot habit. Compare daily loss limits across firms with our forex comparison tool.

Scenario 2: Comparing Risk Across Pairs

Setup: $400 max risk per trade with a 30-pip stop. How does the right lot size change between EUR/USD, USD/JPY, and GBP/JPY?

EUR/USD ($10/pip): $400 ÷ (30 × $10) = 1.33 std lots
USD/JPY (≈$6.70/pip): $400 ÷ (30 × $6.70) = 1.99 std lots
GBP/JPY (≈$6.70/pip): $400 ÷ (30 × $6.70) = 1.99 std lots
✅ Action: Same dollar risk and stop, but JPY pairs let you hold a larger lot because each pip is worth less in USD. Always recompute pip value per pair instead of assuming $10. The calculator does this from the live rate you enter.

Scenario 3: Position Sizing for a Tight Drawdown Buffer

Setup: Your remaining max-drawdown buffer is $1,500. You want any single trade to cost no more than one-third of the buffer ($500). You typically trade GBP/USD with a 50-pip stop.

Risk budget: $1,500 ÷ 3 = $500
Pip value: $500 ÷ 50 pips = $10 per pip
Lot size: $10 ÷ $10 per pip (std lot) = 1.0 standard lot
✅ Action: One standard lot fits exactly. If the buffer shrinks to $900, cut your per-trade cap to $300 and the same 50-pip stop allows 0.6 lots. Rebuilding after a breach? Review the prop firm rules before sizing back up.

Common Mistakes With Pip & Lot Math

⚠ Five Mistakes That Cost Forex Prop Traders Money

  • Assuming every pair is $10 per pip. Only pairs where USD is the quote currency (EUR/USD, GBP/USD, AUD/USD) are a flat $10 per standard lot. JPY pairs, USD-base pairs, and crosses all differ, and eyeballing $10 silently oversizes them. Use the per-pair pip value the calculator returns.
  • Confusing lot size with risk. A "1 lot" habit is not a risk plan. One standard lot on a 20-pip stop risks $200; on a 100-pip stop it risks $1,000. Size from your dollar risk and stop distance every time, not from a lot number you are used to.
  • Forgetting the JPY pip is 0.01, not 0.0001. Counting a 50-point move on USD/JPY as 50 pips when the pair is quoted to two decimals throws your risk off by a factor of ten. The calculator labels JPY pairs correctly, but manual math trips traders here constantly.
  • Ignoring leverage and margin headroom. A position your account can technically open at 1:100 can still blow your daily loss limit on a normal stop-out. Check both the margin requirement and the dollar risk before entering. See our drawdown types guide.
  • Leaving out spread and slippage. Spreads widen and stops slip around news, so a 30-pip planned stop can fill at 33–35 pips in fast markets. Build a small buffer into your stop input, especially around scheduled releases on the economic calendar.

Forex Calculator FAQs

Pips, lot sizes, margin and prop firm limits.

What is a pip in forex trading?

A pip (percentage in point) is the smallest standardized price movement in a forex quote. For most currency pairs (EUR/USD, GBP/USD, etc.), one pip equals 0.0001. For JPY-based pairs (USD/JPY, EUR/JPY, etc.), one pip equals 0.01. The pip value in dollars depends on your lot size and account currency.

How do I calculate my position size?

Divide your risk amount (account size × risk %) by (stop loss in pips × pip value per unit). For example, with a $100,000 account risking 1% ($1,000) and a 50-pip stop on EUR/USD: $1,000 ÷ (50 × $10 per std lot) = 2.0 standard lots. This calculator does this automatically for all supported pairs.

What's the difference between standard, mini, and micro lots?

A standard lot equals 100,000 units of the base currency, a mini lot equals 10,000 units, and a micro lot equals 1,000 units. For EUR/USD with a USD account, one pip on a standard lot is $10, on a mini lot is $1, and on a micro lot is $0.10. Choose the lot size that keeps your risk within your plan.

How does leverage affect my margin requirement?

Leverage determines how much capital you need to open a position. At 1:100 leverage, you need 1% of the notional value as margin. A standard lot of EUR/USD (≈$108,500 notional) requires only $1,085 in margin at 1:100, but $3,617 at 1:30 leverage. Higher leverage means lower margin but also higher risk of liquidation.

What risk percentage should I use per trade?

Most professional forex traders risk between 0.5% and 2% of their account per trade. Prop firms often recommend 1% or less to stay well within drawdown limits. The right percentage depends on your win rate, average R:R ratio, and the specific rules of your prop firm. Conservative risk management is what separates funded traders from blown accounts.

Which currency pairs does this calculator support?

The calculator supports over 50 currency pairs organized into three categories: 7 major pairs (EUR/USD, GBP/USD, USD/JPY, USD/CHF, AUD/USD, USD/CAD, NZD/USD), 14 minor/cross pairs (EUR/GBP, EUR/JPY, GBP/JPY, and more), and 20+ exotic pairs (USD/TRY, USD/ZAR, EUR/SEK, and more). Exchange rates are editable so you can input the latest market price.

What other free tools does ThePropFirmGuide offer?

We also offer a free Futures Dollar-to-Tick Calculator for futures traders and a Consistency Calculator to check if your trading meets prop firm consistency requirements. You can compare forex prop firms side-by-side and browse the latest forex prop firm deals to save on evaluations. For paid tools, see TradeSyncer for trade copying + risk management, Replikanto for NinjaTrader copying, Affordable Indicators for NinjaTrader tools, and Quantower for advanced charting. Visit our Trading Tools page for everything.

Can I use a position size calculator for forex prop firm evaluations?

Yes — and you should on every trade. Forex prop firms set strict daily loss limits (typically 4–5%) and maximum drawdowns (8–10%). If you don't calculate position size before entering, you risk breaching these limits on a single oversized trade. Most evaluation failures come from overleveraging, not bad entries. Use this calculator to find the exact lot size that keeps your risk within the firm's daily loss limit every time.

How do I calculate lot size for a fixed dollar risk amount?

Switch the risk input to Fixed $ mode and enter the exact dollar amount you want to risk, such as $300. The calculator divides that by your stop loss in pips and the pip value for your pair to return the precise lot size. This is useful when your prop firm sets a fixed per-trade risk cap rather than a percentage of your account balance.

How many micro lots can I trade on a $100K prop firm account?

It depends on your stop loss and risk limit, not the account size alone. On a $100,000 account risking 1% ($1,000) with a 20-pip stop on EUR/USD, your position is 5 standard lots, which is 500 micro lots. Widen the stop to 50 pips and the same $1,000 risk allows 2 standard lots (200 micro lots). Always size from your risk amount and stop distance, then read the micro-lot figure the calculator returns. Firms like FXIFY and FundingPips publish their exact daily loss limits.

Why is the pip value different for JPY pairs like USD/JPY?

JPY pairs are quoted to two decimal places, so one pip is 0.01 instead of 0.0001. Because the yen sits in the quote position, the pip value also has to be converted back to your account currency using the live USD/JPY rate. That is why a standard lot of USD/JPY is worth roughly $6–7 per pip rather than the flat $10 you get on EUR/USD. The calculator handles this conversion automatically when you select a JPY pair.

Does this calculator work for cross and exotic currency pairs?

Yes. Cross pairs (like EUR/GBP or GBP/JPY) and exotic pairs (like USD/TRY or USD/ZAR) require an extra conversion step to express pip value in your account currency. The calculator performs that conversion for every supported pair, and because the exchange-rate field is editable you can enter the current market rate for accurate pip values on fast-moving exotics. See our drawdown types guide for how firms treat exotic-pair volatility.

How do I calculate lot size for gold (XAU/USD)?

Divide your dollar risk by your stop (as a dollar move in the gold price) times the contract size. With the standard 100 ounces per lot, risking $500 with a $4 stop gives $500 ÷ ($4 × 100) = 1.25 lots. Choose XAU/USD in the calculator and it does this for you, rounded down to the 0.01-lot step your platform accepts.

How much is one point worth on US30 or NAS100?

It depends on the firm’s contract size. Many forex prop firms set US30 and NAS100 at $1 per point per lot, but others use $5 or $10. Check the symbol specification in your platform, enter it as the contract size in the calculator, and the lot size, risk and firm matches update to match.

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