Calculators
Forex calculators
Three forex calculators: margin for a position at the 1:30 or lower retail caps, the value of a pip, and the lot size for the amount you want to risk. Each page shows its formula and worked examples, so you can check the arithmetic by hand.
- 19 Oct 2026latest broker data check
Low Spread Brokers does not give personal investment advice.
Quick answer
Which forex calculator do you need?
Before a trade you need two numbers: the lot size that keeps your loss at the stop within your limit, and the margin that size ties up. Risking 1% of $5,000 with a 20-pip stop on EUR/USD gives 0.25 lots; at 1:30 and a 1.1000 rate that position needs $916.67 of margin.
- Lot size calculator: balance × risk % ÷ (stop in pips × pip value).
- Pip calculator: what one pip is worth for your position size, $10 per lot on EUR/USD with a USD account.
- Margin calculator: position value ÷ leverage, with the FCA, ESMA and ASIC retail caps as options.
Calculators and the guides behind them
Risk warning:
CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. Most retail investor accounts lose money. Consider whether you understand how CFDs work and whether you can afford the high risk of losing your money.
Low Spread Brokers does not give personal investment advice.
FAQ
Forex calculators: questions
Short answers about the calculators on this site. Exchange rates in the examples are round numbers, not market quotes.
Ask a questionWe cannot give personal investment advice.
1What does a forex calculator do?
It turns a trade idea into money: how many lots to open for a given risk (0.25 lots for $50 at risk and a 20-pip stop), what each pip is worth ($2.50 on 0.25 lots of EUR/USD) and how much margin the position holds. The three calculators here do one job each and show the formula they use.
Data collected up to 19 Oct 2026
2How do I calculate profit on a forex trade?
Multiply the pips gained by the pip value of your position. On EUR/USD with a USD account one lot pays $10 a pip, so a 30-pip gain on 0.5 lots is $150. Subtract the spread, any commission and overnight swaps for the net result.
Data collected up to 19 Oct 2026
3Do the calculators work for any account currency?
They calculate in US dollars. The pip and lot size calculators assume a pair quoted in US dollars, such as EUR/USD; their pages show how to convert for USD/JPY, crosses and GBP or EUR accounts.
Data collected up to 19 Oct 2026
4Which leverage should I enter?
The cap that applies to your account’s company and the asset: 1:30 on major pairs under FCA, ESMA and ASIC rules, 1:20 on other pairs and gold. Your broker may set lower.
Data collected up to 19 Oct 2026
5Are the results financial advice?
No. They are arithmetic on the numbers you enter. Whether a trade suits you depends on your circumstances; CFDs carry a high risk of losing money.
Data collected up to 19 Oct 2026