Volume Converter
Convert volume units (L, gal, cups).
Volume Converter
Volume Converter
Everything you need to know
About the Volume Converter
Volume measurements are used in cooking, chemistry, medicine, automotive maintenance, and countless household tasks. But converting between systems can be frustrating—how many milliliters are in a cup? How many liters in a gallon? Our volume converter handles all common units instantly.
Supported units:
- Metric: Liters (L), milliliters (mL), cubic meters (m³), cubic centimeters (cc/cm³)
- US Customary: Gallons, quarts, pints, cups, fluid ounces, tablespoons, teaspoons
- Imperial: Imperial gallons, imperial fluid ounces
- Automotive: Oil quarts, coolant gallons
Key Conversion Factors
| From | To | Multiply By |
|---|---|---|
| 1 US gallon | Liters | 3.78541 |
| 1 Liter | US gallons | 0.264172 |
| 1 US quart | Liters | 0.946353 |
| 1 Liter | US quarts | 1.05669 |
| 1 US cup | Milliliters | 236.588 |
| 1 US fluid ounce | Milliliters | 29.5735 |
| 1 Imperial gallon | Liters | 4.54609 |
| 1 Imperial gallon | US gallons | 1.20095 |
| 1 cubic meter | Liters | 1,000 |
| 1 cubic foot | Liters | 28.3168 |
Quick Reference Tables
US to Metric (Common)
| US Measure | Metric Equivalent |
|---|---|
| 1 teaspoon | 4.93 mL |
| 1 tablespoon | 14.79 mL |
| 1 fluid ounce | 29.57 mL |
| 1 cup | 236.59 mL (≈ 240 mL) |
| 1 pint | 473.18 mL |
| 1 quart | 946.35 mL |
| 1 gallon | 3.785 L |
Metric to US (Common)
| Metric | US Equivalent |
|---|---|
| 1 mL | 0.034 fl oz |
| 5 mL | 1 teaspoon |
| 15 mL | 1 tablespoon |
| 100 mL | 3.38 fl oz |
| 250 mL | 1.06 cups |
| 500 mL | 2.11 cups |
| 1 L | 1.06 quarts |
| 1 L | 0.26 gallons |
| 4 L | 1.06 gallons |
Cooking and Baking Conversions
Common Recipe Conversions
| Ingredient | Volume | Weight |
|---|---|---|
| Water | 1 cup | 240 g |
| Milk | 1 cup | 245 g |
| All-purpose flour | 1 cup | 120 g |
| Granulated sugar | 1 cup | 200 g |
| Brown sugar (packed) | 1 cup | 220 g |
| Butter | 1 cup | 227 g |
| Honey | 1 cup | 340 g |
| Vegetable oil | 1 cup | 220 g |
Scaling Recipes
| Original | Half | Double | Triple |
|---|---|---|---|
| 1 cup | ½ cup | 2 cups | 3 cups |
| 1 tablespoon | 1½ teaspoons | 2 tablespoons | 3 tablespoons |
| 1 teaspoon | ½ teaspoon | 2 teaspoons | 1 tablespoon |
| 1 quart | 1 pint | 2 quarts | 3 quarts |
Automotive Fluid Volumes
| Fluid | Typical Capacity | Notes |
|---|---|---|
| Engine oil (compact car) | 4-5 quarts (3.8-4.7 L) | Check dipstick |
| Engine oil (truck/SUV) | 6-8 quarts (5.7-7.6 L) | V6/V8 engines |
| Coolant | 2-3 gallons (7.6-11.4 L) | Includes radiator + reservoir |
| Transmission fluid | 9-13 quarts (8.5-12.3 L) | Total capacity; drain/fill is less |
| Brake fluid | 1-2 pints (0.5-1 L) | Reservoir capacity |
| Power steering fluid | 1 pint (0.5 L) | Reservoir capacity |
| Windshield washer | 1 gallon (3.8 L) | Reservoir capacity |
| Gas tank (compact) | 12-15 gallons (45-57 L) | |
| Gas tank (SUV/truck) | 20-30 gallons (76-114 L) |
Household and Pool Volumes
Swimming Pool Volumes
Formula: Volume = Length × Width × Average Depth × 7.48 (for gallons)
| Pool Size | Gallons | Liters |
|---|---|---|
| 12' × 24' × 4' | 8,600 gal | 32,500 L |
| 16' × 32' × 4' | 15,300 gal | 57,900 L |
| 20' × 40' × 5' | 29,900 gal | 113,200 L |
| Olympic (50m × 25m × 2m) | 660,000 gal | 2,500,000 L |
Home Water Usage
| Use | Gallons | Liters |
|---|---|---|
| Toilet flush | 1.6-3.5 gal | 6-13 L |
| Shower (10 min) | 25 gal | 95 L |
| Bath | 36 gal | 136 L |
| Dishwasher | 6-10 gal | 23-38 L |
| Washing machine | 20-25 gal | 76-95 L |
| Sprinkler (1 hour) | 1,000+ gal | 3,785+ L |
Medical and Scientific Volumes
Blood Volume
| Age/Size | Total Blood Volume |
|---|---|
| Newborn | 270-300 mL |
| Child (5 years) | 1,500 mL |
| Adult female | 4-5 L |
| Adult male | 5-6 L |
Common Medical Doses
| Unit | Equivalent |
|---|---|
| 1 cc | 1 mL |
| 1 teaspoon (medical) | 5 mL |
| 1 tablespoon (medical) | 15 mL |
| 1 fluid dram | 3.7 mL |
| 1 minim | 0.062 mL |
Frequently Asked Questions
Why are US and Imperial gallons different?
The US gallon is based on the wine gallon (231 cubic inches), while the Imperial gallon is based on the ale gallon (277.42 cubic inches). The Imperial gallon is about 20% larger.
How many cups are in a liter?
Approximately 4.2 cups per liter, or about 4¼ cups.
What's the difference between fluid ounces and ounces by weight?
Fluid ounces measure volume; ounces (oz) measure weight. For water, they're approximately equal (1 fl oz ≈ 1 oz), but for other substances they differ (1 cup of flour weighs ~4.5 oz but is 8 fl oz).
How do I convert cubic feet to gallons?
1 cubic foot = 7.48 US gallons. Multiply cubic feet by 7.48.
What's a "cc" in engines?
CC stands for cubic centimeters. A 1,500 cc engine has a displacement of 1.5 liters. 1,000 cc = 1 liter.