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Cooking Measurement Converter

Converts kitchen volume measures between US customary teaspoons, tablespoons, fluid ounces, cups, pints, quarts and gallons, metric teaspoons (5 mL), tablespoons (15 mL) and cups (250 mL), imperial fluid ounces and pints, and millilitres/litres.

ValueAmount to convert, expressed in from_unit. From unitUnit of the input value. Accepted symbols: tsp, tbsp, fl_oz_us, cup_us, pint_us, quart_us, gal_us, mL, L, tsp_metric, tbsp_metric, cup_metric, fl_oz_uk, pint_uk; spelled-out names and common abbreviations are accepted too. To unitUnit to convert into (same symbols as from_unit).

When to use

You need to convert a recipe quantity between volume measures, e.g. cups to mL, tablespoons to teaspoons or fluid ounces to millilitres.

Do not use when: You need to convert a volume to grams or ounces by weight (that needs the ingredient's density; use cooking-converter), to scale a whole recipe (use recipe-scaler), or non-kitchen volumes such as cubic metres (use volume).

Formula

result = value × factor, factor = (1 from_unit in L) / (1 to_unit in L)

US units follow the customary definitions (1 US cup = 236.5882365 mL, 1 tbsp = 14.7868 mL, 1 tsp = 4.9289 mL). US nutrition labels round to 240 mL, 15 mL and 5 mL; Australian tablespoons are 20 mL.

Inputs

Parameter	Type	Required	Description
`value`	number	yes	Amount to convert, expressed in from_unit.
`from_unit`	enum: tsp \| tbsp \| fl_oz_us \| cup_us \| pint_us \| quart_us \| gal_us \| mL \| L \| tsp_metric \| tbsp_metric \| cup_metric \| fl_oz_uk \| pint_uk	yes	Unit of the input value. Accepted symbols: tsp, tbsp, fl_oz_us, cup_us, pint_us, quart_us, gal_us, mL, L, tsp_metric, tbsp_metric, cup_metric, fl_oz_uk, pint_uk; spelled-out names and common abbreviations are accepted too.
`to_unit`	enum: tsp \| tbsp \| fl_oz_us \| cup_us \| pint_us \| quart_us \| gal_us \| mL \| L \| tsp_metric \| tbsp_metric \| cup_metric \| fl_oz_uk \| pint_uk	yes	Unit to convert into (same symbols as from_unit).

Outputs

Output	Type	Description
`result`	number	Converted value expressed in to_unit (rounded to 6 decimals; see result_text for very small or very large values).
`result_text`	string	The conversion as text with 6 significant figures, e.g. "5 mi = 8.04672 km".
`formula`	string	Relation used, e.g. "1 mi = 1.609344 km".
`factor`	number	Multiplier from from_unit to to_unit (result = value × factor); absent for non-linear conversions.
`conversion_table`	object	The input value expressed in every supported volume unit (6 significant figures), keyed by unit symbol.

Example

2 US cups to millilitres: {"value":2,"from_unit":"cup_us","to_unit":"mL"} → {"result":473.176473,"formula":"1 cup_us = 236.5882365 mL","conversion_table":{"tbsp":32,"fl_oz_us":16,"cup_metric":1.89271}}

3 tablespoons to teaspoons: {"value":3,"from_unit":"tbsp","to_unit":"tsp"} → {"result":9,"factor":3,"conversion_table":{"mL":44.3603,"fl_oz_us":1.5}}

GET https://tttkmbb.com/api/v1/calculate/cooking-measurements?value=2&from_unit=cup_us&to_unit=mL

Machine access

API: GET https://tttkmbb.com/api/v1/calculate/cooking-measurements (query parameters) or POST with a JSON body {"inputs": {...}}
Schema: https://tttkmbb.com/api/v1/calculators/cooking-measurements · Markdown: https://tttkmbb.com/conversion/cooking-measurements.md · JSON definition: https://tttkmbb.com/conversion/cooking-measurements.json
MCP: server https://tttkmbb.com/mcp, tool run_calculator with calculator_id="cooking-measurements"
OpenAPI operationId: convert_cooking_measurements
Freshness: static. Authentication: none. Rate limit: fair use (see rate limits).

Sources

FAQ

How many grams is a cup of flour?

It depends on the ingredient: a US cup of water is 236.6 g but of all-purpose flour about 120–125 g. Volume-to-weight conversion needs a density; use cooking-converter for common ingredients.

Which cup is used?

cup_us is the US customary cup (236.588 mL); cup_metric is 250 mL (Australia, Canada, NZ). US labelling rounds the cup to 240 mL, 1.4% larger than the customary cup.

Are US and imperial fluid ounces the same?

No: 1 US fl oz = 29.5735 mL and 1 imperial fl oz = 28.4131 mL; a US pint is 16 US fl oz (473 mL), an imperial pint 20 imperial fl oz (568 mL).

Related calculators

Cooking Measurement Converter — Volume-to-weight conversion for common ingredients.
Recipe Scaler — Scale all ingredient amounts by servings.
Volume Converter — Full volume converter including cubic units and imperial gallons.