MPG ↔ L/100km Converter
Convert miles per gallon (US or Imperial) to litres per 100 km and back. Instant two-way conversion.
100% client-side · no upload
Type in any field — other fields update automatically.
How to use
- Type a value in any of the three fields (US MPG, Imperial MPG, or L/100km).
- The other two fields update automatically as you type.
- Use the result in fuel economy comparisons or when crossing between metric and imperial countries.
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- Road Trip Budget Planner — plan full road trip expenses
- EV Charging Cost Calculator — compare EV costs to petrol
Frequently Asked Questions
- Is this MPG converter free?
- Yes, completely free with no signup and no usage limits.
- Does my data leave my device?
- No. All calculations run in JavaScript inside your browser. Nothing is sent to any server.
- Does it work on mobile?
- Yes. The converter is mobile-first and works on iPhone Safari and Android Chrome.
Last updated: By jarvisbox