Tablespoons to Cups Calculator
Converts US kitchen volume from tablespoons to cups via NIST US cup millilitres (16 tbsp = 1 cup).
Limitation: Educational kitchen conversion only.
How to Convert Tablespoons to Cups
Enter tablespoons. The tool applies 16 tbsp = 1 US cup.
Enter the tablespoon amount from your recipe.
Weigh when it matters
Volume-to-weight charts are averages. For finicky baking, weigh on a kitchen scale.
What the Cup Output Shows
Sixteen US tablespoons equal one US cup. Metric tablespoons (15 mL) differ slightly from US (~14.787 mL).
Worked Examples
16 tbsp
Inputs
Result
16 ÷ 16 = 1 cup by definition in US customary measure.
8 tbsp
Inputs
Result
Half a cup equals 8 tablespoons.
Check your cup style
US customary cups differ from metric cups (250 mL). This cluster uses the US legal cup.
Frequently Asked Questions
Still have questions about this calculation?
Try the CalculatorTablespoon to Cup Formula
Volume converts through millilitres using NIST US cup definitions.
Formula
Direct ratio
cups = tbsp ÷ 16
Via millilitres
mL = tbsp × (236.588 ÷ 16)
Scientific Background
Assumptions follow published kitchen references cited in sources. Results are rounded for display.
Sources & review
Tablespoons to Cups Calculator documents the references behind its formulas and assumptions. Always treat results as educational estimates, not personalized professional advice.
Last reviewed
July 22, 2026
Reference
nist.gov
https://www.nist.gov/pml/owm/si-unitsFree Calculator Hub methodology
Free Calculator Hub
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See our methodology and corrections policy.