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Slippage calculator

The gap between the price you expected and the price you actually got, as a percentage and as money on your trade size. Set a slippage tolerance by seeing what each percent costs before you sign the swap.

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The Slippage calculator turns Expected price, Executed price, Trade size into Slippage, Cost of slippage, instantly and for free. For instance, with Expected price = $100.00, Executed price = $101.50 and Trade size = $5,000.00 it returns Slippage = 1.5% and Cost of slippage = $75.00.

How to use it

  1. Enter your values: Expected price, Executed price, Trade size.
  2. Read the result instantly: Slippage, Cost of slippage.

Frequently asked questions

How does the Slippage calculator work?

It takes Expected price, Executed price and Trade size and derives Slippage and Cost of slippage from them. The calculation is live as you type, so the result updates on every change.

Which values does the calculator ask for?

3 values: Expected price ($), Executed price ($) and Trade size ($). Nothing else is required — no account, no file upload.

What does a typical calculation look like?

With Expected price = $100.00, Executed price = $101.50 and Trade size = $5,000.00, the calculator returns Slippage = 1.5% and Cost of slippage = $75.00. Those figures come from running this exact tool, so you can reproduce them by entering the same values.

How much does the result change with different inputs?

It moves a lot. Using Expected price = $200.00, Executed price = $203.00 and Trade size = $10,000.00 instead, Cost of slippage goes from $75.00 to $150.00 — which is why it is worth testing a few scenarios rather than trusting a single figure.

What does it give for smaller values?

Scaled down to Expected price = $50.00, Executed price = $50.75 and Trade size = $2,500.00, Cost of slippage comes out at $37.50. The relationship is worth checking at both ends before you rely on a single result.

When would I actually use this?

Comparing two investments that pay at different times, deciding whether a project clears its cost of capital, and sanity-checking a valuation someone else produced.

What is the most common mistake?

Trusting a valuation without asking what share of it comes from the terminal value. Past 70%, the answer is an assumption about the distant future dressed up as a calculation.

What is the difference between the Slippage calculator and the Cost of equity calculator (CAPM & DDM)?

This one returns Slippage and Cost of slippage; the Cost of equity calculator (CAPM & DDM) returns Cost of equity — CAPM and Cost of equity — DDM. That is the whole difference — open the one whose figure you need.

Is there a tool for the next step?

Position size calculator is the closest one after this: Compute how many shares to buy so you risk a fixed percentage of your account.

What else is worth having open alongside it?

Crypto DCA calculator and Mining profitability calculator — they come up in the same task often enough to be worth a second tab.

Further reading

All guides →
ExplainerWhat Is Slippage in Crypto? Price Impact, Tolerance and What It CostsPrice impact is arithmetic: on a constant-product pool it equals your trade size divided by the reserve plus your trade. Here is the formula, a table of trade size against impact, and why the setting called slippage tolerance changes none of it.ComparisonCrypto Market Cap vs Trading Volume: What Each Number Can and Cannot Tell YouMarket cap is price times circulating supply — an arithmetic product, not money invested. Volume is what actually changed hands. Here is what each measures, how their ratio exposes a thin market, and where fully diluted valuation fits.ExplainerA One-Per-Cent Fee on Each Side Is Not a Two-Per-Cent ProblemBuy and sell fees of 0.5 % each need a 1.005 % gain to break even. Triple them to 1.5 % and you need 3.046 % — more than triple, because the two fees multiply rather than add.GuideHow Crypto Tax Is Calculated: The Principles That Apply EverywhereRates differ by country, the mechanics rarely do: a disposal triggers a gain, the gain is proceeds minus cost basis, and staking is income. Here is the calculation and where jurisdictions diverge.ExplainerAveraging Down Halves the Loss and Doubles the PositionTen shares at 100 plus twenty at 80 gives an average of 86.67. Buy forty at 50 instead and it falls to 60 — but the money at risk goes from 2,600 to 3,000.ExplainerOne Point of Discount Rate Moves a Perpetuity by a QuarterA payment of 1,000 a year is worth 20,000 at a 5 % discount rate and 25,000 at 4 %. The formula is a single division, and that is exactly why the input matters more than the arithmetic.