Formula: tbsp to mL
mL = tbsp × tablespoon_size_mL
US: mL = tbsp × 14.7868
Metric/most sites: mL = tbsp × 15
UK: mL = tbsp × 17.758
Australia: mL = tbsp × 20
Why this matters
For coffee, sauces, dressings, cocktails and baking, a 15 mL vs 20 mL tablespoon can mean a 33% difference. That’s why our tool makes you pick a standard first.
FAQ
1. How many mL is 1/2 tbsp?
US: ~7.3934 mL. Metric: 7.5 mL.
2. How many tablespoons is 30 mL?
Metric: 30 ÷ 15 = 2 tbsp. US: 30 ÷ 14.7868 ≈ 2.03 tbsp.
3. Can I use this for medicine?
It’s safer to use a syringe or cup with mL markings. If instructions say “1 tablespoon” but give no size, default to 15 mL unless your region commonly uses 20 mL.
Extended notes for SEO
You can add country-specific notes (Italy often treats “cucchiaio” ≈ 15 mL in international recipes), pastry notes, and equivalence to teaspoons (1 tbsp = 3 tsp in US/metric; AU tbsp = 4 tsp).
Formula (LaTeX) + variables + units
This section shows the formulas used by the calculator engine, plus variable definitions and units.
Formula (extracted LaTeX)
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Formula (extracted text)
mL = tbsp × tablespoon_size_mL US: mL = tbsp × 14.7868 Metric/most sites: mL = tbsp × 15 UK: mL = tbsp × 17.758 Australia: mL = tbsp × 20
Variables and units
- No variables provided in audit spec.
Sources (authoritative):
- NIST — Weights and measures — nist.gov · Accessed 2026-01-19
https://www.nist.gov/pml/weights-and-measures - NIST — SI units — nist.gov · Accessed 2026-01-19
https://www.nist.gov/pml/owm/metric-si/si-units
Changelog
Version: 0.1.0-draft
Last code update: 2026-01-19
Last code update: 2026-01-19
0.1.0-draft · 2026-01-19
- Initial audit spec draft generated from HTML extraction (review required).
- Verify formulas match the calculator engine and convert any text-only formulas to LaTeX.
- Confirm sources are authoritative and relevant to the calculator methodology.