What does Volume Converter do?
Convert between volume units instantly.
Convert between volume units instantly.
Kitchen cups, fuel pumps, lab glassware, and shipping cubes use different “liter” habits—check which standard you mean.
All rows reconcile through Liter internally (14 units).
The Gallon row uses the US liquid gallon (≈ 3.785 L). UK/imperial gallons are larger (~4.546 L). If a British recipe says “per gallon,” mentally swap systems before trusting a US-gallon conversion.
Cup, tablespoon, and teaspoon rows follow US customary definitions used in many American recipes. Other countries define different cup sizes (metric cup ≈ 250 mL, Japanese rice cup ≈ 180 mL). For baking precision, weigh ingredients or confirm which cup standard the author used.
The barrel value here follows the common petroleum barrel conversion (~159 L) used in energy and commodity contexts—not every industry barrel (beer, wine, shipping) shares the same volume, so always confirm the contract spec.
This tool’s gallon is the US liquid gallon (~3.785 L). A UK/imperial gallon is about 4.546 L—roughly 20% larger. If you are pricing paint in London or reading an old British cookbook, sanity-check which gallon they mean before trusting a straight US conversion.
Open the unit converter hub for weight, length, and everything else.
Comprehensive unit converter for all measurement types
Convert meters, feet, inches, miles, and more
Convert square meters, feet, acres, hectares, and more
Convert kilograms, pounds, ounces, and more
Convert Celsius, Fahrenheit, Kelvin, and more
Convert seconds, minutes, hours, days, and more
Convert km/h, mph, m/s, knots, and more
Convert joules, calories, kWh, BTU, and more
Convert watts, kilowatts, horsepower, and more
Convert bits, bytes, MB, GB, TB, and more
Convert Pascal, bar, PSI, atmosphere, and more
Calculate time differences and durations
Looking for something else?
Browse all toolsA volume converter converts between metric and imperial volume units — litres (L), millilitres (mL), cubic metres (m³), cubic centimetres (cm³), US gallons, UK gallons, US fluid ounces, US cups, US pi
A volume converter converts between metric and imperial volume units — litres (L), millilitres (mL), cubic metres (m³), cubic centimetres (cm³), US gallons, UK gallons, US fluid ounces, US cups, US pints, US quarts, and cubic feet. Volume conversions are required for cooking, fuel calculations, chemistry, and international product labelling.
Concise answers for common searches — definitions, steps, and comparisons.
Convert between volume units instantly.
Volume Converter (/volume-converter) runs in your browser when supported—inputs are not uploaded to EverydayTools servers.
Load Volume Converter on EverydayTools—no account required.
Type, paste, or upload depending on what the tool accepts.
Results update in your browser for typical use cases.
Copy the output or use download/export when available.
Input
2 US cupsOutput
473 mL · 0.473 L · 16 fl oz2 cups of liquid = 473 mL. Most international recipes use mL; US recipes use cups. 1 US cup = 236.6 mL.
Input
15 US gallonsOutput
56.78 litres · 56,781 mL · 12.49 UK gallonsUS car fuel tanks are measured in US gallons; European equivalents use litres. A 15-gallon tank holds 56.8 litres. Note: US and UK gallons are different.
Common real-world scenarios where this tool saves time.
Home cooks and recipe followers
US recipes use cups; international recipes use mL or grams for liquids. Accurate volume conversion prevents measurement errors that affect recipe outcomes, especially in baking.
Chemists and lab scientists
Lab protocols specify volumes in mL or µL; storage tanks are measured in litres or m³. Accurate conversion between scales prevents dosing and dilution errors.
Travellers and drivers
Fuel prices in the US are per US gallon; in Europe per litre. Converting fuel prices to a common unit allows direct price comparison: $4/gallon = $1.06/litre.
How this EverydayTools page compares for typical use.
| Aspect | EverydayTools | Typical alternative |
|---|---|---|
| Cost | Free | Paid apps or trials |
| Privacy | Browser-local when supported | Often requires cloud upload |
| Signup | Not required | Often required |
Advertisement
1 US cup = 236.588 mL. Common cup fractions: ½ cup = 118.3 mL, ⅓ cup = 78.9 mL, ¼ cup = 59.1 mL. Note: metric cups (used in Australia, Canada) = 250 mL — slightly larger than the US cup.
1 US gallon = 3.78541 litres. 1 UK (imperial) gallon = 4.54609 litres. The US and UK gallons are different — the UK gallon is about 20% larger. A 10 US gallon gas can holds 37.85 litres.
1 US fluid ounce = 29.5735 mL. 1 UK (imperial) fluid ounce = 28.4131 mL. They are close but not identical. Most international recipes and nutritional labels use mL to avoid this ambiguity.
1 litre = 4.2268 US cups. Approximate: 1 litre ≈ 4 cups + 3 tablespoons. For cooking, 1 litre = 4 cups is a common enough approximation. 2 litres ≈ 8.5 cups.
1 litre = 1,000 cubic centimetres (cm³). This is exact by definition. 1 cm³ = 1 mL. So 250 mL = 250 cm³. The cubic centimetre and millilitre are numerically identical for liquid volume.
Volume Converter keeps typical inputs on your device—nothing is uploaded to EverydayTools servers for core calculations.
Advertisement
Reviewed by EverydayTools Editorial Team on 2026-05-28.
Same workflow or intent — pick the next step without leaving the site.
Convert kg to lbs, lbs to kg, ounces to grams, and stone instantly—exact international pound (453.59237 g), live charts, stone+lb display. Runs in your browser.
Free area converter — convert between square meters, square feet, acres, hectares, square kilometers, and more. See all unit conversions at once as you type. No signup required. Runs locally in your browser when supported—no upload required for normal use.
Convert MB, GB, TB, KiB, MiB, and TiB with SI (1000) or IEC (1024) toggle. Runs locally in your browser—nothing uploaded. Free, instant, copy results.
Convert joules, calories, kcal, kWh, BTU, and eV instantly—all units at once. Runs locally in your browser; nothing uploaded. Food labels, HVAC, and physics.
Convert meters, feet, inches, miles, kilometers, yards, and more with fast live calculations across all major units. Runs locally in your browser when supported—no upload required for normal use.
Convert watts, kW, MW, mechanical & metric hp, BTU/h, and tons of cooling—runs locally in your browser, no upload. All units at once; pair with Energy Converter for kWh.
Frequently opened tools from the same category.
Convert meters, feet, inches, miles, kilometers, yards, and more with fast live calculations across all major units. Runs locally in your browser when supported—no upload required for normal use.
Free weight converter — kg to lbs, lbs to kg, oz to grams, and stone with exact international pound factors, conversion charts, and stone+lb display. Runs locally in your browser—no signup, no upload.
Free temperature converter — instantly convert between Celsius, Fahrenheit, and Kelvin. See all three temperature values update in real time as you type. No signup required. Runs locally in your browser when supported—no upload required for normal use.
Convert joules, calories, kcal, kWh, BTU, and eV instantly—all units at once. Runs locally in your browser; nothing uploaded. Food labels, HVAC, and physics.
Cross-category tools others open in the same session.
Free JSON formatter — paste minified or messy JSON and instantly get beautified, indented output with syntax highlighting and error detection. Browser-based, no server upload. Runs locally in your browser when supported—no upload required for normal use.
Compress JPG, PNG & WebP in your browser—up to 80% smaller, batch 25 files, 50/100/200 KB presets. Files stay on your device. No signup.
Free PDF merger — combine multiple PDF files into one document. Drag to reorder files, preview pages, and download the merged PDF instantly. No signup, fully browser-based. Runs locally in your browser when supported—no upload required for normal use.
Instantly count words, characters, sentences, paragraphs, and reading time. Great for essays, articles, and SEO writing. No signup — works as you type. Runs locally in your browser when supported—no upload required for normal use.
Browse full tool collections by topic.