Everyday Tools
Cooking Measurement Converter
Convert any kitchen volume — teaspoons, tablespoons, fluid ounces, cups, pints, quarts, gallons, millilitres, or litres — and see the amount in every other unit at once.
Calculation inputs
Uses US customary kitchen measures. See the reference table below for gram weights of common baking ingredients.
Results
No result yet
Complete the fields and select Calculate to show results here.
Gram figures in the reference table are standard approximate conversions (per USDA FoodData Central), not exact weights — measuring by weight is always more accurate for baking.
About this calculator
This tool converts between the kitchen volume units recipes actually use — teaspoons, tablespoons, fluid ounces, cups, pints, quarts, gallons, millilitres, and litres — and shows the amount in every unit at once. A reference table below gives approximate gram weights for common baking ingredients.
How the calculation works
- Convert the amount to millilitres using the from-unit factor
- Divide by the to-unit factor: result = amount × (mL per from-unit) ÷ (mL per to-unit)
- 1 tbsp = 3 tsp · 1 cup = 16 tbsp · 1 pint = 2 cups · 1 quart = 2 pints · 1 gallon = 4 quarts
Notes and assumptions
Volume-to-weight conversions depend on the ingredient: a cup of flour weighs far less than a cup of butter. The reference table on this page lists standard approximate gram weights for common baking ingredients.
US and UK (imperial) pints and gallons are different sizes; this tool uses US measures throughout.
How it works in plain English
Every unit is first converted to millilitres using its standard US factor, then divided by the factor of the unit you want. One US cup is 236.588 millilitres, one tablespoon is 14.787, and one teaspoon is 4.929, so the relationships stay exact: 3 teaspoons to a tablespoon, 16 tablespoons to a cup, 2 cups to a pint, 2 pints to a quart, 4 quarts to a gallon.
The results table shows your amount in all nine units at once, which is handy when a recipe mixes systems — for example when a European recipe lists 250 mL of milk and your measuring jug is marked in cups.
Converting volume to weight is a different problem, because ingredients have different densities. The reference table lists standard approximate gram weights per cup, tablespoon, and teaspoon for flour, sugar, and butter, drawn from USDA FoodData Central figures. These are averages, not exact weights — a scale is always more accurate for baking.
The formula
- Result = amount × (mL per from-unit) ÷ (mL per to-unit)
- 1 cup = 8 fl oz = 16 tbsp = 48 tsp ≈ 236.588 mL
- 1 gallon = 4 quarts = 8 pints = 16 cups ≈ 3.785 L
Worked example
Suppose a British recipe calls for 300 mL of milk and your measuring cup is marked in US cups.
Enter 300, choose millilitres as the from-unit and cups as the to-unit. The tool converts 300 mL ÷ 236.588, giving about 1.27 cups — a generous cup and a quarter.
The full table shows the same amount as roughly 1.22 metric cups, 20.3 tablespoons, or 0.63 pints, so you can measure it whichever way your kitchen equipment allows.
Approximate gram weights for common baking ingredients
| Ingredient | 1 cup | 1 tbsp | 1 tsp |
|---|---|---|---|
| All-purpose flour (spooned) | ≈ 120 g | ≈ 7.5 g | ≈ 2.5 g |
| Granulated sugar | ≈ 200 g | ≈ 12.5 g | ≈ 4.2 g |
| Butter | ≈ 227 g | ≈ 14.2 g | ≈ 4.7 g |
Source: standard approximate conversions based on USDA FoodData Central density figures. Values are rounded averages — actual weight varies with how the ingredient is packed.
Frequently asked questions
Are US and UK cups the same size?
No. A US cup is 236.588 mL, while a metric cup used in the UK, Australia, and elsewhere is 250 mL. Imperial pints and gallons are also larger than US ones — an imperial pint is 568 mL against the US 473 mL. This tool uses US measures throughout, so check which system your recipe uses.
Why can't I convert cups to grams directly?
Cups measure volume and grams measure weight, and the bridge between them is density, which differs per ingredient. A cup of flour weighs about 120 g while a cup of butter weighs about 227 g. That is why the reference table lists figures per ingredient rather than one universal conversion.
How many teaspoons are in a tablespoon?
Three, in both US and metric kitchen measures. A US tablespoon is 14.787 mL and a US teaspoon is 4.929 mL, exactly a third of it. Four tablespoons make a quarter cup, and sixteen make a full cup.
Is a fluid ounce the same as an ounce of weight?
Only for water, roughly. A fluid ounce measures volume (29.57 mL), while an ounce measures weight (28.35 g). One fluid ounce of water happens to weigh close to one ounce, but honey, flour, and oil all weigh differently per fluid ounce, so the two units are not interchangeable.
How accurate are the gram figures in the table?
They are standard approximate conversions from USDA density data, rounded for kitchen use. How much flour fits in a cup depends on whether it is scooped or spooned and levelled, which can swing the weight by 20% or more. For consistent baking, weigh ingredients on a scale instead of measuring by volume.
Helpful next steps
- Volume Converter — Convert larger kitchen volumes, such as liters to quarts.
- Weight and Mass Converter — Convert ounces and pounds to grams.
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