Skip to content
RK Calculator
Menu

US Tablespoons to Ounces (Butter) Converter

Convert US tablespoons (tbsp) to ounces (avoirdupois) (oz) for butter, with the formula, a conversion table and exact factors.

Change the values and press Calculate to work out your own figures.

Enter an amount, choose its measure and the one you want, and pick the type. Spoons and cups convert to weight using the cited weight per cup.

The quantity to convert. Fractions such as 3/4 or 1 1/2 are accepted.
Unit you want. Swap exchanges the two units.
Weight per cup differs by ingredient and by how it is measured; each option names the assumption used.
Result
Converted amount
0.500449 oz
Density used
0.959473 g/mL (USDA FDC 173410, 1 cup = 227 g)

1 US tablespoons of butter = 0.500449 ounces (avoirdupois). Weights for cups and spoons vary with how the ingredient is measured, so treat this as a close estimate.

The same amount in other weight units
UnitAmount
milligrams14,187.5
grams14.1875
kilograms0.0141875
pounds0.0312781
Show the working
  1. 1 tbsp = 14.7867647812 mL
  2. × 0.959473 g/mL (USDA FDC 173410, 1 cup = 227 g) = 14.1875 g
  3. = 0.50044933516 oz

How to convert us tablespoons to ounces

1 tbsp = 0.500449 oz, so multiply by 0.500449 to go from US tablespoons to ounces (avoirdupois) of butter. Going the other way, 1 oz = 1.9982 tbsp.

oz = tbsp × 0.500449
tbsp = oz × 1.9982

Cups and spoons convert to weight using the weight per cup for butter shown in the result; how the ingredient is measured (spooned, packed, sifted) changes it.

Worked example:

5 tbsp = 73.9338239062 mL
× 0.959473 g/mL (USDA FDC 173410, 1 cup = 227 g) = 70.9375 g
= 2.5022466758 oz

US Tablespoons to ounces table

US TablespoonsOunces
1 tbsp0.500449 oz
2 tbsp1.0009 oz
3 tbsp1.50135 oz
4 tbsp2.0018 oz
5 tbsp2.50225 oz
6 tbsp3.0027 oz
7 tbsp3.50315 oz
8 tbsp4.00359 oz
9 tbsp4.50404 oz
10 tbsp5.00449 oz
15 tbsp7.50674 oz
20 tbsp10.009 oz
25 tbsp12.5112 oz
30 tbsp15.0135 oz
40 tbsp20.018 oz
50 tbsp25.0225 oz
75 tbsp37.5337 oz
100 tbsp50.0449 oz
250 tbsp125.112 oz
500 tbsp250.225 oz
1000 tbsp500.449 oz

About the units

US Tablespoons (tbsp)
US tablespoons, a US customary unit. Definition: NIST Handbook 44 Appendix C (US customary units; US gallon = 231 in³).
Ounces (oz)
Ounces (avoirdupois), a US customary unit. Definition: NIST Handbook 44 Appendix C (US customary units; US gallon = 231 in³).

Formula version 0.1.0Reviewed