Convert tablespoons to cups

Convert tablespoons to cups, with the formula and a quick reference table.

Result
0.0625 cups

≈ ¹⁄₁₆ cups · 1 tbsp = 0.0625 cup

tbsp: US tablespoon = 3 US teaspoons cup: US legal-ish cup = 8 US fl oz = 236.588 mL

All volume units

UnitValueSymbol
14.786765mL
1.4786765cL
0.14786765dL
0.014786765L
14.786765cm³
0.000014786765
0.90234375in³
0.00052218967ft³
3tsp
1tbsp
0.5fl oz
0.0625cup
0.03125pt
0.015625qt
0.00390625gal
2.4980222tsp (UK)
0.83267418tbsp (UK)
0.52042137fl oz (UK)
0.052042137cup (UK)
0.059147059cup (metric)
0.026021068pt (UK)
0.013010534qt (UK)
0.0032526335gal (UK)
0.125stick
0.000093005952bbl

tablespoons to cups at a glance

tbspcup
10.0625
20.125
30.1875
40.25
50.3125
100.625
251.5625
503.125
1006.25

Other volume conversions

How it works

Every unit in this dimension is defined as a ratio to one base unit — the liter. Converting is therefore two multiplications: into the base unit, then out of it.

1 tbsp = 0.0625 cup

US, imperial and metric cups are not the same

A US cup is 236.588 mL, an imperial (UK) cup is 284.131 mL, and a metric cup — used in Australia and most modern recipe books — is exactly 250 mL. A recipe that says "1 cup" can mean any of the three, so this converter lists them separately rather than guessing.

Rounding

Results are rounded to 8 significant figures, adjustable with the slider above. Exact factors are used internally, so chaining conversions does not accumulate error.

Sources

Conversion factors follow NIST Special Publication 811 (Guide for the Use of the International System of Units) and the BIPM SI Brochure, 9th edition. Every factor is checked by an automated round-trip test on each build.