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Crypto trading calculators

Explore the arithmetic behind your own trade records: position size, an illustrative liquidation price, and realized R-multiple. Enter values you have chosen or recorded. These tools do not recommend trades or settings.

Calculations run in your browser. Calculator inputs are not sent, saved, logged, or tracked, and disappear when you leave or reload this page.

Position size calculator

Convert a recorded risk amount and entry-to-stop distance into a quantity for a linear position. The quantity follows only from your inputs; it is not a suggested position size.

Liquidation price calculator (estimate)

Illustrate a simplified isolated-margin threshold for a linear, quote-currency-margined contract. This is not an exchange liquidation quote. Real exchange values differ; do not use this estimate to place orders or manage margin.

Formula and assumptions

Long: P ≈ E × (1 − 1/L) ÷ (1 − m − f). Short: P ≈ E × (1 + 1/L) ÷ (1 + m + f). E = entry, L = leverage, m = maintenance rate/100, f = closing fee allowance/100.

Model: initial margin per base unit is E/L; remaining equity is E/L + (P − E) for long, or E/L + (E − P) for short. Set equity equal to (m + f) × P. Assumes fixed maintenance and closing fee rates on mark-price notional, isolated margin, and no extra collateral. Excludes cross/portfolio margin, inverse contracts, tier deductions, funding, opening fees, and exchange-specific liquidation charges. Leverage must exceed 1; rates must be non-negative and their sum below 100/L percent. The exchange's mark-price rules and margin schedule determine its actual threshold.

Worked example — arithmetic only, not a recommendation

Illustrative long: entry 100, leverage 2, maintenance 1%, closing allowance 0%: 100 × (1 − 1/2) ÷ (1 − 1/100 − 0/100) ≈ 50.505051 quote currency per base unit.

R-multiple calculator

Express a closed trade's realized net result as a multiple of its initial recorded risk. Positive and negative results describe that record; they do not predict future outcomes.