Cooking Conversion Calculator
Instantly convert between cups, tablespoons, milliliters, fluid ounces — and switch oven temperatures between Fahrenheit and Celsius. This free online other calculator runs entirely in your browser — no signup, no data sent anywhere.
Inputs
Results
How It Works (Formula & Method)
All volume units are normalized to milliliters using standard U.S. customary conversions: 1 cup = 240 mL (the U.S. legal cup; some recipes use 250 mL or 237 mL), 1 tablespoon = 14.787 mL, 1 fluid ounce = 29.574 mL, 1 pint = 473 mL, 1 quart = 946 mL, 1 gallon = 3,785 mL. Temperature uses the standard formula: °C = (°F − 32) × 5/9.
Worked Example
Below is a worked example using the calculator's default values. The same numbers are pre-filled in the form above so you can press Calculate and see the result without typing anything.
Inputs used:
- Value: 1
- From Unit: cup
- To Unit: ml
- Oven Temperature (°F) — optional: 350
With these inputs, the calculator computes the metrics shown in the Results panel. Change any value and press Calculate again to see how the result responds — the live widget and the chart both update instantly.
About the Cooking Conversion Calculator
Recipes routinely mix measurement systems — a British scone calls for grams of flour, an American cookie recipe asks for cups, and a French sauce specifies milliliters. This calculator handles all the common kitchen volume conversions and the most-asked-for cooking temperature conversion: Fahrenheit to Celsius.
How to Use This Calculator
Enter the amount and pick the source unit on the left. Pick the target unit on the right. The result updates instantly. To convert an oven temperature, enter Fahrenheit in the optional field; the Celsius equivalent appears below.
Tips & Considerations
- The U.S. cup (240 mL) differs from the metric cup (250 mL) and the U.K. cup (284 mL, rarely used). U.S. cups are the default for American recipes.
- For baking precision, weigh ingredients in grams. A "cup" of flour can vary 20–30% depending on how packed it is.
- Common oven conversions to memorize: 350°F ≈ 175°C, 375°F ≈ 190°C, 400°F ≈ 205°C, 425°F ≈ 220°C.
Frequently Asked Questions
How big is a U.S. cup?
Exactly 240 mL by U.S. legal definition. The customary U.S. cup is 236.588 mL; the difference is negligible for most cooking.
Why is my recipe slightly different in metric?
Cookbook authors round conversions for readability — a "1 cup" might be written as 250 mL in metric editions. The difference is rarely meaningful.
Are these dry or liquid measurements?
These are volume conversions, which work for liquids and reasonably packed dry ingredients. For very precise baking, use weight instead.
What does the Cooking Conversion Calculator compute?
The Cooking Conversion Calculator takes 4 input values and returns 2 results. Convert between cups, tablespoons, teaspoons, milliliters, liters, fluid ounces, pints, quarts, and gallons — plus Fahrenheit to Celsius.