Volume Converter
Metric & Imperial Liquid Conversions.
Kitchen Weight Estimator
Convert this volume to weight based on the ingredient.
Volume Visualizer
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Volume Converter: Liquid, Dry & Cooking Calculator
Volume is a measure of 3D space, but the way we measure it depends entirely on where we are. A chef in New York uses Cups, a chef in Paris uses Milliliters, and an engineer in Dubai uses Gallons.
Welcome to the Universal Volume Converter, a tool designed to translate between Metric, US Standard, and Imperial units instantly.
Understanding the Systems
1. The Metric System
Used by 95% of the world. Decimal-based and linked to mass (1L Water = 1kg). Base unit: Liter (L).
2. US Liquid Standard
Complex system based on binary divisions. 1 Gallon = 4 Quarts = 8 Pints = 16 Cups.
3. Imperial System (UK)
Warning: A UK Gallon (4.54L) is larger than a US Gallon (3.785L). Be careful when traveling!
Common Kitchen Conversions
Cooking is chemistry. Precision matters. Here is a quick cheat sheet for the most common recipe conversions:
| US Unit | Metric Approx | Precise Value |
|---|---|---|
| 1 Teaspoon (tsp) | 5 ml | 4.93 ml |
| 1 Tablespoon (tbsp) | 15 ml | 14.79 ml |
| 1 Fluid Ounce (fl oz) | 30 ml | 29.57 ml |
| 1 Cup | 240 ml | 236.59 ml |
| 1 Gallon | 3.8 Liters | 3.785 L |
Real-World Applications
Baking & Cooking
Professional bakers weigh ingredients, but recipes often use volume. Volume is unreliable for dry ingredients. 1 Cup of packed flour weighs more than 1 Cup of sifted flour. Use our Kitchen Weight Estimator (below the tool) to convert volume to grams for better results.
Pool Maintenance
You need to shock your pool. Bottle says "Add 1 lb per 10,000 Gallons." If your pool is 50,000 Liters, type that in. Result: 13,208 Gallons. You need about 1.3 lbs of chemicals.
Fuel Economy & Travel
Driving in Canada (Liters) with a US Car (Gallons)? If you have a 15-Gallon tank, that equals 56.8 Liters. At $1.50/L, a fill-up costs ~$85.
Frequently Asked Questions
How many liters in a Gallon?
There are approximately 3.785 liters in one US Liquid Gallon. Note that the UK Imperial Gallon is different (4.546 liters).
What is the difference between Fluid Ounces and Dry Ounces?
A Fluid Ounce (fl oz) measures volume (liquid space), while a standard Ounce (oz) measures weight. 8 fl oz of water weighs roughly 8 oz, but 8 fl oz of flour weighs much less.
How many cups in a quart?
There are 4 cups in a quart. A common rhyme to measure is: '2 cups in a pint, 2 pints in a quart, 4 quarts in a gallon'.
How do I convert ml to cups?
One measuring cup is approximately 237 ml (US Customary). To get cups from ml, divide the ml value by 237.
What is a Barrel of Oil?
A standard oil barrel (bbl) is exactly 42 US Gallons, which equals approximately 159 liters.
How many teaspoons in a tablespoon?
There are exactly 3 teaspoons in 1 tablespoon. This is a universal standard in both US and Metric cooking systems (15ml vs 5ml).
US Gallon vs UK Imperial Gallon - What's the difference?
This is a major source of confusion. The US Gallon (3.78L) is smaller than the UK Imperial Gallon (4.54L). The UK gallon is based on 10lbs of water at 62°F. Always check which 'gallon' your car or manual refers to.
How many milliliters are in a liter?
There are exactly 1,000 milliliters (ml) in 1 liter. The prefix 'milli' means one-thousandth. This simple base-10 conversion makes the metric system extremely easy to use.
How do I calculate the volume of a square tank?
Measure Length × Width × Depth. If measuring in cm, the result is in cubic centimeters (cc or ml). Divide by 1000 to get Liters. Example: A 50cm × 20cm × 10cm tank = 10,000 cc = 10 Liters.
Is a 'Cup' the same size everywhere?
No! A US Cup is ~236.6ml. A Metric Cup (used in Australia, NZ, UK) is exactly 250ml. A Japanese Cup is 200ml. When baking, using the wrong cup size can ruin a recipe.
How many Gallons are in 1 Cubic Foot?
One Cubic Foot contains approximately 7.48 US Gallons. This conversion is vital for pool owners, plumbers, and engineers calculating water flow or tank capacity.
What is a 'Pint' of beer?
It depends where you are! A standard US Pint is 16 fl oz (473ml). A British Imperial Pint is 20 fl oz (568ml). If you order a pint in London, you get about 20% more beer than in New York.