BullCalc
21 free tools · no signup

Crypto trading calculators that do the math before you enter.

Position size, liquidation price, PnL, risk/reward and more. Built for futures traders. Free, fast and works on your phone.

Open calculatorsPosition Size Calculator

Market Cap Calculator

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All calculators

Pick a tool. Every calculator is free.

Futures trading

Size, risk, leverage, fees and liquidation for perpetual futures.

PS
Popular
Position Size Calculator
How big to enter based on your risk % and stop loss.
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PnL
Futures PnL Calculator
Profit, loss and ROE% from entry, exit and leverage.
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LIQ
Popular
Liquidation Price Calculator
Where a long or short gets liquidated.
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R:R
Risk / Reward Calculator
R:R ratio from entry, stop loss and up to 3 targets.
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FND
Funding Fee Calculator
What you pay or earn in funding while holding.
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LEV
Leverage Calculator
The leverage you need for a target position size.
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BF
Binance Futures Calculator
PnL, ROE, target and liquidation price in one place.
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FEE
Trading Fee Calculator
Maker and taker fees for any trade size.
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BE
Breakeven Price Calculator
The exit price where you cover all fees.
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SL
Stop Loss / Take Profit Calculator
SL and TP prices from a percent or ROE target.
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Spot & investing

Profit, averaging, compounding, staking and tax.

DCA
DCA / Average Entry Calculator
Your average price after several buys.
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SPT
Popular
Crypto Profit (Spot) Calculator
Profit or loss on a simple buy and sell.
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CMP
Compound Growth Calculator
How an account grows at a fixed % per day, week or month.
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AVG
Average Down Calculator
How much to buy to bring your average to a target.
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WHY
Popular
What If I Invested Calculator
What an old crypto buy would be worth today.
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APY
Staking / APY Calculator
Staking rewards and APR to APY conversion.
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TAX
Crypto Tax Calculator
Estimate capital gain and tax on a crypto sale.
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Market & Bitcoin

Live prices, market cap, halving and mining.

CNV
Crypto Converter
BTC to USDT and other pairs at live prices.
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MC
Popular
Market Cap Calculator
Coin A price if it had the market cap of Coin B.
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HLV
Popular
Bitcoin Halving Countdown
Live countdown to the next Bitcoin halving.
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MIN
Bitcoin Mining Calculator
Daily and monthly mining profit after electricity.
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From the blog

Guides that explain the math behind each tool.

All articles
3 min read
The 1% Rule: How Much Should You Risk Per Crypto Trade?
Why many traders risk only 1% to 2% of their account per trade, how the rule protects you from losing streaks, and how to apply it in crypto futures.
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3 min read
Futures PnL vs ROE: Why Your Profit Percentage Looks So Big
PnL and ROE explained for crypto futures traders: why a small price move can show a large ROE, and why ROE alone can mislead you.
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2 min read
Isolated vs Cross Margin: Which One Protects Your Account?
The difference between isolated and cross margin in crypto futures, how each affects your liquidation price, and when traders use each one.
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3 min read
Risk/Reward and Win Rate: The Math Behind Profitable Trading
How risk/reward ratio and win rate work together, the break-even win rate for each R:R, and why a high R:R alone does not make a strategy profitable.
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2 min read
What Are Funding Rates and Why Do They Change?
A clear explanation of funding rates on perpetual futures: who pays whom, why rates go up and down, and how they affect traders who hold positions.
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2 min read
How Much Leverage Should You Use in Crypto Futures?
What leverage really does, why it is not the same as risk, and a practical way to choose a leverage level that keeps your stop loss ahead of liquidation.
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Why use a trading calculator?

Most trading losses do not come from a bad idea but from bad numbers: a position that is too big, leverage that puts liquidation before the stop loss, or fees that quietly eat the profit. A few seconds with the right calculator before you click "buy" or "sell" avoids all three.

Every BullCalc tool runs in your browser. Nothing you type is stored or sent to us. Tools that need live data, such as the converter, market cap calculator, halving countdown and mining calculator, load public market data directly in your browser; every other calculator works only with the numbers you enter.

Where to start

Frequently asked questions

Are the calculators free?

Yes. All calculators are free to use with no account and no signup.

Do you store the numbers I enter?

No. All calculations run in your browser and nothing you type is sent to our server.

Do the calculators work for any exchange?

Yes. They use the standard formulas for USDT-margined futures, which most exchanges share. Small differences can come from fees and exchange-specific rules.

Is this financial advice?

No. BullCalc provides tools for education and planning only. You are responsible for your own trading decisions.