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Tablespoons to Cups Converter

Enter the volume in tablespoons below to convert it to cups.

Convert Tablespoons (US) to Cups (US)

Enter a value in tablespoons (us) (tbsp) to convert to cups (us) (cup).

Result
•
0.5cups (us)
8 tbsp = 0.5 cup
Result updates automatically
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Equivalent Measurements Across UnitsFor 8 tbsp
Milliliters118.29412 mL
Liters0.11829 L
Suggested Conversions
Reference:NIST OWM (SI Units — Volume)
[1–3] ↓

Tablespoon to Cup Conversion Table

Table showing various tablespoon measurements converted to cups. Click any preset value or arrow to load it into the converter.

Tablespoons (US) (tbsp)Cups (US) (cup)
1 tbsp0.0625 cup
2 tbsp0.125 cup
4 tbsp0.25 cup
5 tbsp0.3125 cup
8 tbsp0.5 cup
10 tbsp0.625 cup
15 tbsp0.9375 cup
16 tbsp1 cup
20 tbsp1.25 cup
25 tbsp1.5625 cup

How to Convert Tablespoons to Cups

To convert tablespoons to cups, multiply the volume by the following conversion ratio: 0.0625 cups/tablespoon.

Since one tablespoon is equal to 0.0625 cups, you can use this simple formula to convert:

cups = tablespoons × 0.0625

The volume in cups is equal to the volume in tablespoons multiplied by 0.0625.

For example, here's how to convert 8 tablespoons to cups using the formula above.

cups = (8 tbsp × 0.0625) = 0.5 cup

How Many Cups Are in a Tablespoon?

There are 0.0625 cups in a tablespoon, which is why we use this value in the formula above.

1 tbsp = 0.0625 cup|1 cup = 16 tbsp

Our tablespoon to cup calculator automatically converts your volume measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.

Tablespoons and cups are both units used to measure volume. Keep reading to learn more about each unit.

What Is a Tablespoon?

A tablespoon is a unit of volume equal to 0.0147868 liters (L), the base unit for volume. 1/2 US fluid ounce or 3 US teaspoons (14.7868 mL). [1]

The tablespoon is classified as a US customary unit of volume. Tablespoons can be abbreviated as tbsp; for example, 1 tablespoon can be written as 1 tbsp.

When working with tablespoons (tbsp) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.

In practice, tablespoons (tbsp) are widely used across standard volume applications within US customary workflows, engineering documentation, and technical data sheets.

What Is a Cup?

A cup is a unit of volume equal to 0.2365882 liters (L), the base unit for volume. Equal to 8 US fluid ounces or 16 US tablespoons (236.59 mL). [2]

The cup is classified as a US customary unit of volume. Cups can be abbreviated as cup; for example, 1 cup can be written as 1 cup.

When working with cups (cup) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.

In practice, cups (cup) are widely used across standard volume applications within US customary workflows, engineering documentation, and technical data sheets.

When converting volume between tablespoons (tbsp) and cups (cup), keep full floating-point precision (1 tbsp = 0.0625 cup; 1 cup = 16 tbsp) during intermediate calculations and round only the final cup figure to match your instrument tolerance.

More Tablespoon & Cup Conversions

Need to calculate in the opposite direction? Use our cups (us) to tablespoons (us) converter (cup to tbsp) to switch your starting unit immediately. You can also explore related tools such as converting liters to cups (us), converting quarts (us) to cups (us), or converting tablespoons (us) to teaspoons (us).

Frequently Asked Questions

There are 0.0625 cups (cup) in 1 tablespoon (tbsp). Conversely, 1 cup (cup) is equal to 16 tablespoons (tbsp).

References

NIST · BIPM · ISO
  1. [1]
    NIST OWM (SI Units — Volume)·Volume & Liquid Metrology Standard — Tablespoons (US) (tbsp) to Cups (US) (cup)
    NIST OWM Standard
  2. [2]
    NIST HB 44 (Liquid & Dry Capacity Tables)·Unit Specifications: Tablespoon (US) (tbsp) & Cup (US Customary) (cup)
    NIST HB 44 Specification
  3. [3]
    NIST SP 811 (NIST SP 811 App. B.9)·Conversion Factors & Mathematical Basis (tbsp to cup)
    NIST SP 811 Reference
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