Cooking Converter
Convert cooking measurements between US cups, tablespoons, teaspoons and metric ml — plus common dry weights. Built for cooks who follow recipes from different countries.
Educational estimate. Calculator results are for planning and information only, not financial, tax, medical, legal, or engineering advice. Verify important decisions with official sources or a qualified professional.
Cooking Converter
Cups, Tablespoons, Teaspoons, ml, Grams
📐 Formula & Method
Linear conversion
All units are stored as a multiplier against an internal base unit. To convert, the input is first scaled to the base, then divided by the target factor.
📋 How to Use
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1
Enter the numeric value you want to convert.
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2
Pick the source unit in the From dropdown.
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3
Pick the target unit in the To dropdown.
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4
Click Calculate. You will see the result, a full conversion table to every supported unit, and a list of common conversions.
💡 Key Insights
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There are FOUR "cup" sizes in use — pick the right one: US legal cup 236.6 mL, US customary cup 240 mL, metric 250 mL, UK 284 mL.
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For dry ingredients, weight (grams) is more accurate than volume (cups). Volumes vary with packing density.
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Australian tablespoon is 20 mL (not 15 mL) — recipes from Down Under may need adjustment.
🔬 Methodology & Accuracy
Formula: Linear unit conversion with high-precision constants. All math runs client-side in your browser using IEEE-754 doubles.
Data sources: BIPM SI brochure (9th ed.); NIST SP 811 (2008 ed.); ISO 80000-1 quantities and units.
Last reviewed: January 2026 · Accuracy: Results are precise to two decimal places using IEEE-754 double-precision arithmetic. Intended for educational and planning use only.
For informational purposes only. Results are estimates based on the inputs and formulas provided. For financial, tax, medical, or legal decisions, consult a qualified professional. Rates and regulations change — always verify current figures with official sources.
Accuracy & Feedback
❓ Frequently Asked Questions
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