0.50 US tablespoons to US cups
0.031 cup
0.50 tbsp = 0.031 cup.
US cups
0.031cup
0.500 tbsp = 0.031 cup
In short
How many US cups is 0.50 US tablespoons?
0.50 tbsp = 0.031 cup. 1 US tablespoon = 0.062500 US cups, so the working is 0.50 × 0.062500 = 0.031.
The working
The factor below is an exact definition rather than a measurement, so nothing is approximated in the arithmetic. The only rounding on this page happens where a number is displayed.
1 US tablespoon = 0.062500 US cups 0.50 × 0.062500 = 0.031
How much precision do you need?
Each row is the same answer cut at a different number of decimals, with what that choice costs you. Pick the shortest row whose error is smaller than whatever you are measuring with.
| Rounded to | Answer (cup) | Off by |
|---|---|---|
| Whole number | 0 | −0.03125 |
| 1 decimal | 0.0 | −0.03125 |
| 2 decimals | 0.03 | −0.00125 |
Round trip: take 0.031 cup back the other way and you land on 0.4960 tbsp — a drift of 0.0040 tbsp. That gap is the rounding, not the conversion.
Frequently asked questions
What is 0.50 US tablespoons in US cups?
0.50 US tablespoons is 0.031 US cups. 1 US tablespoon = 0.062500 US cups, so the working is 0.50 × 0.062500 = 0.031.
How accurate is 0.031 cup?
Rounding to 0.031 cup and converting straight back gives 0.4960 tbsp, a drift of 0.0040 tbsp from the 0.50 you started with. The factor itself is exact; every bit of that difference comes from the rounding, not the conversion.
Nearby values
Any value at all
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