Crypto Position Size Calculator

Enter risk amount or percentage, entry and stop to get recommended size in coins or USDT.

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Calculator Inputs

USDT-M Perpetual
₿
PERP
$
%
$

Market Benchmark: $65,000.00

$

Stop distance: 3.08% / $2,000.00

1x to 125x
x
calculate

Primary Mathematical Results

Precision: 4 Decimals (BTC)
Position Size (Tokens)
0.0100 BTC

Risk Amount ÷ Risk Per Token

Position Size (USDT)
$650.00 USDT

Total Contract Value

Margin Required 10x Lev
$65.00 USDT

USDT Locked in Margin Wallet

Risk Amount 2.00% Risk
$20.00 USDT

Exact loss if stop is triggered

Stop Distance Spread
3.08%

Delta: $2,000.00 / token

Leverage & Margin Stress Matrix

Observe how changing leverage shifts initial margin allocation while capital loss stays perfectly capped.

Leverage Tier Token Size Total Notional Margin Required Max Risk ($) Approx Liq Distance Safety Cushion Status

*Liquidation distance includes standard maintenance margin rates of 0.4% and assumes isolated position structure.

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How to Size Crypto Positions

In crypto futures and perpetual swaps, position sizing dictates exactly how much capital you risk if your stop loss is hit, protecting you from sudden market volatility and liquidation cascades.

Does leverage change my risk?

No. Your position size is purely calculated based on the distance between your Entry and Stop Loss. Leverage only changes how much margin is required to open that position. You will lose the exact same amount of money whether you use 5x or 50x leverage, assuming your position size and stop loss remain the same.

The Mathematical Formulation

// 1. Determine capital at risk
Risk Amount = Account Size × Risk %
// 2. Measure dollar distance to stop invalidation
Risk Per Token = | Entry Price - Stop Loss Price |
// 3. Calculate quantity of crypto asset
Position Size (Tokens) = Risk Amount ÷ Risk Per Token
// 4. Total notional contract value
Position Size (USDT) = Position Size (Tokens) × Entry Price
// 5. Collateral required from equity wallet
Margin Required = Position Size (USDT) ÷ Leverage

Critical Note on Liquidation vs Stop Loss:

Ensure your liquidation price sits well beyond your stop loss price! If you utilize excessively high leverage (e.g. 50x or 100x), the exchange's maintenance margin requirement may force an automated liquidation prior to price ever reaching your technical stop-loss trigger.

Frequently Asked Questions

Answers regarding risk control, cross vs isolated collateral, and mathematical sizing.

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