Volume Converter
Free volume converter that instantly translates liters, gallons, cups, tablespoons, teaspoons, cubic feet, cubic inches, and cubic yards. Great for cooking, brewing, shipping, construction, science labs, and classroom use—complete with live results, formulas, and examples to keep every measurement precise.
Understanding the Conversion
Need to convert volume quickly and accurately? This free volume converter lets you switch between liters, gallons, cups, tablespoons, teaspoons, cubic feet, cubic inches, and cubic yards in a few clicks. It is designed for the real situations you face every day: scaling recipes, calculating paint or concrete, sizing aquariums, estimating shipping boxes, or checking fluid capacities for brewing and home improvement.
Metric and US/imperial measurements do not always line up cleanly. A liter is metric, while gallons, cups, tablespoons, and teaspoons are US customary; cubic feet, cubic inches, and cubic yards are used heavily in construction. Instead of memorizing factors like 1 gallon = 3.78541 liters or 1 cubic foot = 1728 cubic inches, you simply pick your From and To units, enter a value, and the converter returns an instant answer.
Because accuracy matters, this calculator uses standard conversion factors trusted in construction, cooking, science labs, and shipping. You can experiment with different unit pairs to see how much space a container truly holds, how many cups fit in a gallon, or how many cubic yards of soil you need for landscaping. The interface is mobile friendly, so you can measure in a kitchen, on a job site, or at your desk without downloading anything.
Volume conversions usually rely on a single multiplier or divisor. For example, to go from liters to gallons you divide by 3.78541; to go from cubic feet to cubic inches you multiply by 1728. By surfacing both the formula and a worked example, the tool makes every conversion transparent and repeatable—helpful for students, DIYers, contractors, and anyone who needs reliable answers on the fly.
Common Use Cases
- Cooking and baking: switch between cups, tablespoons, teaspoons, and liters when scaling recipes or adapting international cookbooks.
- Home brewing and beverages: convert gallons, liters, and fluid ounces to size batches, kegs, and fermenters accurately.
- Construction and landscaping: move between cubic yards, cubic feet, and cubic inches to estimate concrete, gravel, mulch, or soil.
- Shipping and storage: calculate box and container capacity by converting cubic inches to cubic feet or liters to gallons for labeling.
- Aquariums and pools: translate tank volume between liters, gallons, and cubic feet to size pumps, filters, and treatments.
- Science labs and classrooms: check beaker or flask volumes in milliliters, liters, or cubic inches for experiments and demonstrations.
- DIY projects: figure out paint, resin, or epoxy volume by converting cups or ounces to liters or gallons before mixing.
Frequently Asked Questions
How does this volume converter work?
Choose your From and To units, enter a value, and the calculator applies the correct conversion factor instantly. It uses standard relationships like 1 gallon = 3.78541 liters and 1 cubic foot = 1728 cubic inches.
Which volume units can I convert?
You can convert between liters, gallons (US and imperial), cups, tablespoons, teaspoons, cubic feet, cubic inches, and cubic yards. The tool supports common cooking, construction, and shipping units in one place.
Is this converter accurate enough for construction or lab use?
Yes. It uses industry-standard factors, so you can rely on it for estimating concrete or soil, sizing aquariums, or performing classroom and lab calculations. For critical engineering specs, always follow project or regulatory precision requirements.
Can I see the formula behind each conversion?
Each conversion shows the formula, such as multiply by 1728 for cubic feet to cubic inches or divide by 3.78541 for liters to gallons, along with worked examples so you can verify the math.
Does it handle both US and imperial measurements?
Yes. You can move between US gallons and imperial gallons, and between US fluid ounces and imperial fluid ounces, with the correct factors applied automatically.
Can I enter decimal values?
Absolutely. Enter any decimal value—like 2.75 gallons or 0.5 cubic feet—and the converter returns precise results in the target unit.
Do I need to install anything?
No. The converter runs in your browser on mobile, tablet, and desktop. There is nothing to download or sign up for.
How do I convert liters to gallons by hand?
Divide liters by 3.78541 to get US gallons. For example, 10 liters ÷ 3.78541 ≈ 2.6417 gallons. The tool performs this calculation instantly for you.
Why do cubic conversions involve large numbers like 1728?
Cubic conversions scale all three dimensions. Since 1 foot = 12 inches, a cubic foot equals 12 × 12 × 12 = 1728 cubic inches. The converter applies these cubic relationships automatically.