teaspoons to tablespoons | Exact Decimal + Formula

1 US Teaspoon = 0.333333 US Tablespoon

One US tablespoon equals exactly 3 US teaspoons — a fixed ratio you can memorize. Real-world use: small ingredient amounts and seasoning in recipes. This page expresses those values in US tablespoons, which is used for recipes, spice measures, and sauce portions. Enter any value above — the result updates instantly, and a 1–1000 reference table follows below.

About US Teaspoon and US Tablespoon

US Teaspoon (tsp)

A US teaspoon is 1/48 of a cup, about 4.93 milliliters.

Where it's used: Small ingredient amounts and seasoning in recipes.

US Tablespoon (tbsp)

A US tablespoon is 1/16 of a cup, about 14.79 milliliters.

Where it's used: Recipes, spice measures, and sauce portions.

Cooking (Volume) Converter

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Precision

Formula

tbsp = tsp × 0.333333333

To convert US Teaspoon to US Tablespoon, use the formula displayed above.

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US Teaspoon to US Tablespoon: Quick Reference Table

US Teaspoon	US Tablespoon (Decimal)	Fraction	Real-world equivalent
0.001 tsp	0.000333 tbsp	-	fractional unit measurement
0.01 tsp	0.003333 tbsp	-	fractional unit measurement
0.1 tsp	0.033333 tbsp	-	fractional unit measurement
0.5 tsp	0.166667 tbsp	-	fractional unit measurement
1 tsp	0.333333 tbsp	-	fractional unit measurement
2 tsp	0.666667 tbsp	-	fractional unit measurement
5 tsp	1.666667 tbsp	-	standard single unit scale
10 tsp	3.333333 tbsp	-	standard single unit scale
25 tsp	8.333333 tbsp	-	standard single unit scale
50 tsp	16.666667 tbsp	-	multiple unit increments
100 tsp	33.333333 tbsp	-	multiple unit increments
250 tsp	83.333333 tbsp	-	multiple unit increments
500 tsp	166.666667 tbsp	-	multiple unit increments
1000 tsp	333.333333 tbsp	-	multiple unit increments

tsp to tbsp Formula and Examples

Direct Formula tbsp = tsp × 0.333333333

Inverse Formula tsp = tbsp × 3

Mental Math Shortcut

Divide the value by roughly 3 to quickly estimate the converted result.

Common US Teaspoon to US Tablespoon Calculations

5 tsp = 1.666667 tbsp
10 tsp = 3.333333 tbsp
50 tsp = 16.666667 tbsp
100 tsp = 33.333333 tbsp
500 tsp = 166.666667 tbsp

Precision & Practical Use

For example, 10 tsp = 3.333333 tbsp — roughly standard single unit scale.

Results are computed to up to 9 decimal places. Round to the precision of your measuring instrument — for most cooking (volume) applications, 2–3 significant figures are plenty.

How to Convert US Teaspoon to US Tablespoon

How many us tablespoons are in one us teaspoon?

One US Teaspoon (tsp) equals 0.333333 US Tablespoon (tbsp). To convert us teaspoons to us tablespoons, multiply the us teaspoon value by 0.333333.

How do I convert US Teaspoon to US Tablespoon?

Multiply your us teaspoon value by 0.333333 to get the result in US Tablespoon: tbsp = tsp × 0.333333. For example, 5 tsp = 1.666667 tbsp.

What is the formula for converting tsp to tbsp?

The conversion formula is tbsp = tsp × 0.333333. Use the calculator above for any value, and see the reference table below for common inputs from 0.001 to 1000.

Is there a quick mental estimate for tsp to tbsp?