Gas Fee Calculator
Estimate transaction costs on Ethereum, BSC, Polygon — set your own Gwei.
Gas Fee Calculator
How to use Gas Fee Calculator
Follow these steps — everything happens instantly in your browser.
- 1
Step 1. Select the chain (Ethereum, BSC, Polygon, Arbitrum, Optimism).
- 2
Step 2. Enter the gas limit (defaults to 21,000 for a simple transfer).
- 3
Step 3. Enter the gas price in Gwei (defaults to a typical current value).
- 4
Step 4. Optionally enter the native token price in USD to see the fiat cost.
Why use this tool
Private by design
All processing happens locally in your browser. Open DevTools → Network and you'll see zero file uploads. Ever.
Instant
No upload wait, no queue, no server round-trip. Results appear the moment you drop a file.
Free & unlimited
No accounts, no watermarks, no daily caps. Use it as many times as you like, forever.
Works everywhere
Desktop, tablet or phone — every tool is responsive and installable as a PWA for offline use.
Frequently asked questions
Everything you might want to know about gas fee calculator.
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