Volume Converter 🧪
Free online volume converter. Convert liters to gallons, ml to oz, cubic meters to cubic feet and 30+ volume units instantly. L to gal calculator with formulas.
📐 Conversion Formula
Common Volume Conversions
Quick Volume Conversions
Liters to Gallons
× 0.264172
10 L = 2.64 gal
ml to fl oz
× 0.033814
100 ml = 3.38 fl oz
m³ to ft³
× 35.3147
1 m³ = 35.3 ft³
Gallons to Liters
× 3.78541
5 gal = 18.9 L
Converter Performance Metrics
How to Use Volume Converter
Step 1: Enter Volume Value
Type the volume value you want to convert in the "From" field. The converter accepts any positive number including decimals. For example, enter 1 for 1 liter or 100 for 100 ml depending on your selected unit.
Step 2: Select Source Unit
Choose the unit of your input volume from the "From" dropdown. Options include liters, gallons, milliliters, fluid ounces and 30+ other volume units. Select the unit that matches your container or liquid measurement.
Step 3: Select Target Unit
Pick the unit you want to convert to from the "To" dropdown. The conversion happens automatically in real-time as you change units. The formula used for conversion is displayed below for educational reference.
Step 4: Use Results
View the converted result in the "To" field. Click Copy to copy the result to clipboard, Swap to reverse conversion direction, or Reset to start over. All calculations are instant and accurate for cooking and science.
Understanding Volume Measurement
What is Volume?
Volume is amount of three-dimensional space occupied by liquid, gas, or solid—measured in cubic units. For liquids: liters, gallons, milliliters. For solids/gases: cubic meters, cubic feet. Basic formula for rectangular container: \( \text{Volume} = \text{length} \times \text{width} \times \text{height} \). Volume critical for cooking, chemistry, medicine, engineering.
Conversion Formulas: \( 1 \text{ liter} = 0.264172 \text{ US gallons} \), \( 1 \text{ US gallon} = 3.78541 \text{ liters} \), \( 1 \text{ ml} = 0.033814 \text{ fl oz (US)} \), \( 1 \text{ fl oz (US)} = 29.5735 \text{ ml} \), \( 1 \text{ m}^3 = 35.3147 \text{ ft}^3 = 1,000 \text{ liters} \). Key relationships: 1 L = 1,000 ml, 1 US gallon = 128 fl oz = 4 quarts, 1 UK gallon = 4.54609 liters (different from US gallon).
Common Volume Units Explained
Liter (L): Metric volume unit. 1 liter = 1,000 ml = 1 cubic decimeter (dm³). Water bottle ~500 ml - 1.5 L. Soda bottle 2 L. Used worldwide except USA. Car fuel tank ~40-70 liters. Conversions: 1 L = 0.264 US gal = 33.8 fl oz. Standard for beverages, fuel, chemicals globally.
Gallon (gal): Imperial/US volume unit. US gallon = 3.785 L, UK gallon = 4.546 L (20% larger). Milk jug = 1 gallon. Gas prices per gallon in USA. 1 US gallon = 128 fl oz = 4 quarts. Swimming pool ~15,000-30,000 gallons. Used for fuel, milk, larger liquid quantities in USA.
Milliliter (ml) & Fluid Ounce (fl oz): Small volume units. 1 ml = 0.001 L. Medicine dosage ~5-10 ml. Shot glass ~30-44 ml. 1 US fl oz = 29.5735 ml ≈ 30 ml. Coffee cup ~250 ml (8 fl oz). Essential for cooking, medicine, bartending, chemistry. Precise measurements critical for recipes, prescriptions.
Common Use Cases
👨🍳 Cooking & Baking
Convert recipe volumes—USA uses cups/fl oz, rest of world uses ml/L. 1 cup = 237 ml, 1 tablespoon = 15 ml, 1 teaspoon = 5 ml. International recipes require conversions. Precision critical for baking. Essential for following recipes from different countries and achieving consistent results.
💊 Medicine & Healthcare
Convert medication dosages—often prescribed in ml, teaspoons, or tablespoons. Liquid medicine for children requires precise measurement. IV fluids, blood transfusions measured in ml/L. Understanding volume conversions critical for patient safety, proper dosing, and following medical instructions accurately.
⛽ Fuel & Automotive
Convert fuel volumes—USA prices per gallon, Europe per liter. Car fuel efficiency: mpg vs L/100km. Gas tank capacity 40-70 liters (10-18 gallons). Understanding fuel costs internationally. Essential for travel, comparing vehicle efficiency, and calculating fuel consumption across measurement systems.
🔬 Science & Laboratory
Convert volumes for experiments—chemistry uses ml, L, cubic centimeters. Pipettes measure microliters (µl). Solution preparation requires precise volumes. pH measurements, titrations, concentrations all volume-dependent. Essential for scientific research, quality control, and accurate experimental results.
🍷 Beverages & Bartending
Convert drink volumes—cocktail recipes use fl oz, ml, shots (1.5 oz = 44 ml). Wine bottle 750 ml. Beer pint US = 473 ml, UK = 568 ml. Drink serving sizes vary internationally. Understanding volume essential for bartenders, wine enthusiasts, and following drink recipes accurately.
🏊 Pools & Aquariums
Calculate water volumes—swimming pools measured in gallons (USA) or cubic meters/liters (international). Chemical dosing requires knowing exact volume. Aquarium 50 gallons = 189 liters. Understanding volume critical for water treatment, chemical balance, and proper equipment sizing for pools and aquariums.