Cooking Calculators
Cooking Converter
Convert within US cooking volume, mass, or Celsius/Fahrenheit families without ingredient-density assumptions.
Enter the values and review the result.
Compatible cooking-unit conversion
All selectors begin neutral. Units never cross between volume, mass, and temperature families.
Use complete ASCII decimal input. Signs are rejected except a leading minus for temperature; whitespace and exponent notation are not normalized.
Choose a compatible family and units, then convert.
Three isolated conversion families
The volume family uses explicit US customary kitchen measures alongside millilitres and litres. The mass family uses grams, kilograms, and explicitly labelled avoirdupois ounces and pounds. The temperature family uses degrees Celsius and Fahrenheit. Source and target units must belong to the selected family, so a volume cannot accidentally be presented as a mass.
A US fluid ounce is a volume unit. An avoirdupois ounce is a mass unit. Similar words do not make them interchangeable. Imperial fluid measures, metric cups, Australian tablespoons, Kelvin, gas marks, and fan-versus-conventional oven adjustments are outside this converter.
Exact unit foundations
The US volume table derives from one US liquid gallon equalling exactly 231 cubic inches and 128 US fluid ounces. One US cup is eight US fluid ounces, one US tablespoon is one sixteenth of a cup, and one US teaspoon is one third of a tablespoon. With the exact international inch definition, one US gallon is 3.785411784 litres.
The international avoirdupois pound equals exactly 0.45359237 kilogram, and one avoirdupois ounce is one sixteenth of that pound. Metric prefixes provide 1000 millilitres per litre and 1000 grams per kilogram. The calculator stores one coherent base factor per unit instead of separate rounded forward and inverse tables.
Worked examples
Volume: 1 US cup × 0.2365882365 litres per cup × 1000 millilitres per litre = 236.5882365 mL, displayed as 236.588237 mL.
Mass: 16 oz (avdp) × 0.028349523125 kilograms per ounce × 1000 grams per kilogram = 453.59237 g.
Temperature: 180 °C × 9 / 5 + 32 = 356 °F. The inverse calculation is (F − 32) × 5 / 9.
Assumptions and limitations
Zero is valid for volume and mass, and signed temperature input is allowed down to absolute zero. Values are not trimmed, clamped, or partially parsed. Results retain internal precision until deterministic six-decimal display formatting.
This tool makes no ingredient-density assumption and cannot make a universal cups-to-grams conversion. Ingredient density can vary with ingredient identity, packing, moisture, temperature, and measuring technique. Celsius/Fahrenheit arithmetic also does not guarantee identical appliance behavior or cooking results. Verify recipe conventions and practical settings for the recipe and equipment you use.
Scaling versus converting
Use the Recipe Scaler to multiply ordered ingredient quantities for a different serving count. It preserves unit text and does not perform these unit conversions.
Quick answers
What this calculator answers
- Compatible families: Convert US cooking volume to volume, mass to mass, or Celsius and Fahrenheit to each other.
- Density boundary: Cups are not converted to grams because that requires a named ingredient and a supported density model.
Transparency note
Accuracy and limitations
Calzivo tools are built for practical estimates, conversions, and checks. Some tools use standard formulas or simplified assumptions, and results can be affected by input accuracy, rounding, units, local rules, or changing official requirements.
Results depend on the values you enter and any simplified assumptions used by the tool. Verify important results before making decisions or submitting official information.
Reference check
Sources and references
These references provide background context for the topic. They do not replace official advice or documents for personal decisions.
- NIST Handbook 44, Appendix C: General Tables of Units of Measurement
National Institute of Standards and Technology
- NIST Guide to the SI, Appendix B: Conversion Factors
National Institute of Standards and Technology
- The International System of Units (SI Brochure)
Bureau International des Poids et Mesures
How to Use This Tool
Use these steps to enter the right inputs and interpret the result correctly.
Choose US cooking volume, mass, or temperature.
Choose source and target units from that compatible family.
Enter one complete decimal quantity; temperature may use a minus sign.
Convert, review the unrounded arithmetic, and copy only the primary result.
Related Tools
Other helpful tools in the Cooking Calculators category.
Recipe Scaler
Scale ordered ingredient rows from original to desired servings using decimals or ASCII fractions while preserving entered units.
Unit Converter
Convert common length, mass, and temperature units.
Weight Converter
Convert mass units with avoirdupois and ton distinctions.
Related Guides
Background reading and explanations related to Cooking Converter.
Frequently Asked Questions
Common questions about Cooking Converter and how to read the result.
Can this convert cups to grams?
No. Cups measure volume and grams measure mass. Their relationship changes with ingredient density, packing, moisture, and measuring method.
Are cups and spoons US definitions?
Yes. The volume family explicitly uses US teaspoons, tablespoons, cups, fluid ounces, liquid pints, liquid quarts, and liquid gallons.
Is a fluid ounce the same as an ounce of mass?
No. US fluid ounces measure volume. Avoirdupois ounces measure mass, so they appear in different families.
Does a converted oven temperature guarantee the same result?
No. Celsius and Fahrenheit conversion is exact arithmetic, but appliance calibration, airflow, vessel, food placement, and recipe method can affect cooking.