How is liquidation price calculated?

For a long, liquidation is roughly entry x (1 - 1/leverage + maintenance margin). Higher leverage moves liquidation closer to your entry, increasing risk.

What position size should I use?

Size from risk: position units = (account x risk% ) / (entry - stop). This caps your loss to a fixed % of the account if the stop is hit.

Does dollar-cost averaging guarantee profit?

No. A lower average price is not profit; it is a lower break-even. Your honest return is the realized P/L if you sold now, which the DCA reality check shows.

Don't get rekt.

Free crypto risk calculators. Know your liquidation price, size by risk, and see the real return behind DCA. No sign-up, no hype, nothing leaves your browser.

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⚡ Quick Liquidation

Entry price ($)

Leverage: 10x

Position size ($ margin)

Maint. margin (%)

Estimated liquidation price

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Liquidation ≈ entry × (1 − (1/lev) + mmr) for longs. A rough estimate — exchanges add fees & funding. Lower leverage = farther liquidation = safer.

Trading Toolkit

Six focused calculators. Each one built to show risk, not hide it.

Liquidation Price

Find the exact price where your position gets wiped, based on leverage and margin.

Position Size

Size from risk, not hope. Cap your loss to a fixed % of the account.

PnL / ROE

Project profit and loss with leverage and ROE before you click the button.

Funding Fees

What perpetual funding really costs you over hours, days and weeks of holding.

DCA Average

Your true entry price and the honest realized return — averaging isn't profit.

Break-even

The real zero-profit point including exchange fees and slippage.

DCA Reality Check

Averaging down often looks great because your average sits below price. But your realized return — what you'd bank selling now — is the honest number. Here are both.

Buy amount each step ($)

Number of buys

Avg buy price ($)

Current price ($)

Total invested

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Current value

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Honest realized P/L if you sold now: —

Position Size — risk-based

Never blow up. Decide size from how much you're willing to LOSE, not how much you want to win. The single most important habit of survivors.

Account size ($)

Risk per trade (%)

Entry price ($)

Stop-loss price ($)

Risk amount ($)

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Position size (units)

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Notional position value: —

Popular coin liquidation calculators

Pre-set for each coin's real leverage and maintenance margin.

₿

Bitcoin (BTC)

Up to ~100x, ~0.5% maintenance margin. Find your BTC liquidation price.

Ethereum (ETH)

Moves harder than BTC — plan your liquidation for the move ETH makes.

◎

Solana (SOL)

High-beta large cap, ~50x cap. Keep leverage low, liquidation far.

XRP

Quiet, then a 30% headline gap. Don't get comfortable on high leverage.

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BNB

Steadier alt, up to ~75x. Size for the worst hour, not the average.

Dogecoin (DOGE)

Brutally volatile — where high leverage goes to die. Check first.

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Made by traders who got rekt first.

Every calculator here exists because we lost money the dumb way and got tired of tools that flatter you instead of telling you the truth.

Why RektCalc?

Most calculators flatter you. RektCalc doesn't. Built by people who run real strategies and got tired of tools that hide risk. The DCA Reality Check exists because “average price below market” is not the same as “you made money.” Know your liquidation, size by risk, see the truth — and don't get rekt.

📝 Read the blog — honest, data-backed trading notes. No hype.