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1 US teaspoon = 0.333333 US tablespoon

Reviewed June 18, 2026 Linear conversions use exact SI and international definitions where available. No account, tracking login, or third-party scoring required.
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Formula Summary

Result: 1 US teaspoon = 0.333333 US tablespoon

Formula: (1 x 0.004928921594) / 0.014786764781

Rounding: Displayed to 6 decimal places by default, trimmed for readability. Use Detailed or Scientific for more precision.

Real World Context

0.333333 US tablespoon is approximately:

  • about a US teaspoon for medicine or baking
Unit Story

Teaspoon

A US teaspoon is one third of a tablespoon. It is one of the most common small recipe measures.

Tablespoon

A US tablespoon is 3 teaspoons. Recipes use it because it is small enough for ingredients but larger than a teaspoon.

How This Conversion Works

US teaspoon and US tablespoon are both used for volume conversions. This page converts 1 US teaspoon into 0.333333 US tablespoon using the formula shown below.

Use this result for quick checks, comparisons, and everyday reference. For work that depends on exact precision, review the rounding setting and the assumption note before using the number.

The precision controls let you switch between a shorter result, the standard readable result, and scientific notation when the value is very large or very small.

Unit Notes
  • 1 US teaspoon (tsp) equals 0.0049289216 liter.
  • 1 US tablespoon (tbsp) equals 0.0147867648 liter.

Questions

How do you convert US teaspoon to US tablespoon?

This page converts US teaspoon to US tablespoon using this formula: (1 x 0.004928921594) / 0.014786764781.

What is 1 US teaspoon in US tablespoon?

1 US teaspoon equals 0.333333 US tablespoon.

How many decimals does this converter show?

Displayed to 6 decimal places by default, trimmed for readability. Use Detailed or Scientific for more precision. The precision buttons can also show a shorter result or scientific notation.

Equivalent Values
0.0049289216 liter
4.9289215938 milliliter
0.0000049289 cubic meter
4.9289215938 cubic centimeter
0.0013020833 US gallon
0.0052083333 US quart
0.0104166667 US pint
0.0208333333 US cup
0.1666666667 US fluid ounce
0.3333333333 US tablespoon
1 US teaspoon
Nearby Values
0.5 US teaspoon 0.1666666667 US tablespoon
1 US teaspoon 0.3333333333 US tablespoon
2 US teaspoon 0.6666666667 US tablespoon
5 US teaspoon 1.6666666667 US tablespoon
10 US teaspoon 3.3333333333 US tablespoon
Full Details
Formula
(1 x 0.004928921594) / 0.014786764781
Rounding
Displayed to 6 decimal places by default, trimmed for readability. Use Detailed or Scientific for more precision.
Assumption
US customary volume units use US liquid measure unless a future page states otherwise.

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