Crypto Profit/Loss Calculator

CoinGecko ID: bitcoin

Leave blank to use live price fetched from CoinGecko

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About This Tool

The Crypto Profit/Loss Calculator lets you calculate your gains or losses on any cryptocurrency trade. Select a coin, enter your buy price and amount, and either enter a sell price or fetch the current live price from CoinGecko to instantly see your profit, loss, and ROI percentage.

How to Use

  1. Select a Coin from the dropdown, or choose "Custom" to enter any cryptocurrency manually.
  2. Enter the Amount Bought and your Buy Price in USD.
  3. Enter a Sell Price, or leave it blank to use the live price fetched from CoinGecko.
  4. Click Calculate Profit/Loss to see your total value, profit or loss, and ROI percentage.

Why Choose OmniTools?

? Instant Results

Zero server lag. All calculations run locally on your device for maximum speed.

??? 100% Private

Your data never leaves your device. No uploads, no servers, no tracking.

Frequently Asked Questions

Coin not in the list?

Select "Custom" from the dropdown to manually enter any cryptocurrency. Note that live price fetching will be unavailable for custom coins — you'll need to enter the sell price manually.

Does this tool use real-time prices?

Yes, prices are fetched from CoinGecko's free API for supported coins. Custom coins require manual sell price entry. Prices are cached for 2 minutes to avoid rate limits.

Are my calculations private?

Absolutely. All calculations happen in your browser. No data is sent to any server except the CoinGecko price lookup for supported coins.

Is this calculator free?

Yes, completely free with no sign-up required. All calculations run in your browser.

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