Volume Converter
Convert between L, mL, gallons, cups, m³, ft³ and more.
Convert between L, mL, gallons, cups, m³, ft³ and more.
This free Volume Converter from KX Toolkit is part of our all-in-one online toolkit. It runs entirely in your browser, so your data never leaves your device for client-side operations. 100% free, forever - no paywall, no credit card, no trial.
How to use the Volume Converter
- Pick the unit you have and the unit you want.
- Enter the value.
- Read the converted value - most tools update as you type.
- Use the swap button to reverse the direction if needed.
What you can do with the Volume Converter
- Convert recipe ingredients between metric and imperial.
- Translate engineering specs across systems.
- Check shipping weights and dimensions before ordering.
- Quick travel conversions for distance, speed and currency.
Why use KX Toolkit's Volume Converter
- Browser-based: Works on Windows, macOS, Linux, iOS and Android - no install, no extension.
- Privacy-first: Client-side tools never upload your data; server-side tools delete files right after processing.
- Mobile-friendly: Full feature parity on phones and tablets - not a stripped-down view.
- Fast: Optimised for instant feedback. No artificial waiting screens, no email-gated downloads.
- One hub for everything: 300+ tools across SEO, text, image, PDF, code, color, calculators and more - skip switching between sites.
Tips for the best results
For very large or very small numbers, use the scientific-notation option - it avoids floating-point rounding errors.
Related Unit Converter Tools
If you find this tool useful, explore the full Unit Converter Tools collection or browse our complete tool directory. KX Toolkit is built for marketers, developers, designers, students and anyone who needs a quick utility without signing up for yet another SaaS.
What is the difference between a US gallon and an imperial gallon?
A US gallon is 3.78541 litres, while a UK (imperial) gallon is 4.54609 litres, about 20 percent larger. This affects fuel economy comparisons: 30 mpg in the UK is roughly 25 mpg in the US for the same actual efficiency. The converter has separate entries for each so you can pick the correct one based on your country or recipe.
How do I convert litres to gallons?
Divide litres by 3.78541 for US gallons, or by 4.54609 for imperial gallons. So 50 litres of fuel is about 13.2 US gallons or 11 imperial gallons. The reverse multiplies gallons by the same factor. Always confirm which gallon a source uses, especially when reading car specs or cooking recipes from different countries.
What is the difference between fluid ounces in the US and UK?
A US fluid ounce is about 29.574 mL, while a UK fluid ounce is 28.413 mL. Despite the close numbers, US and UK cups, pints, and quarts differ by about 4 percent on the ounce side and 20 percent on the pint side because the pints contain different numbers of ounces. The converter handles both, which avoids quiet errors in international recipes.
How big is a US cup?
A standard US cup is 236.59 mL or 8 US fluid ounces. A metric cup is 250 mL exactly. A UK cup is rare but is usually 284 mL (half an imperial pint). For recipes, always check which cup is meant. The converter shows all three so you can adjust an American recipe in a country that uses metric kitchen tools.
How do I convert cubic metres to litres?
Multiply by 1,000. One cubic metre equals 1,000 litres exactly, by definition. So a 5 cubic metre tank holds 5,000 litres. Cubic centimetres convert the other way: 1 cc equals 1 mL, so a 1.6 litre engine has a displacement of 1,600 cc. These conversions come up constantly in plumbing, fuel storage, and mechanical specs.
What volume units are supported?
Millilitres, centilitres, litres, cubic metres, cubic centimetres, cubic feet, cubic inches, US and UK fluid ounces, US and UK gallons, US and UK pints, quarts, cups, tablespoons, and teaspoons. The variety covers science, plumbing, cooking, and fuel use across both metric and imperial systems.
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