A metric tablespoon is defined as exactly 15 milliliters.
Metric tablespoon to Teaspoon
Convert Metric tablespoon to Teaspoon instantly. Free online cooking unit converter with exact formula, conversion table and FAQ.
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Cooking Converter
Convert cooking volume and mass units used in recipes and nutrition workflows.
Context values
Some unit families need one extra value for a physically accurate result.
A US teaspoon is a customary volume unit equal to 4.92892159375 milliliters, commonly used in recipes.
tsp = metric tbsp × 3.043262043
Results update instantly for Metric tablespoon to Teaspoon conversions.
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Formula
tsp = metric tbsp × 3.043262043
metric tbsp = tsp × 0.3285947729
Conversion table
| 1 metric tbsp | 3.043262 tsp |
| 5 metric tbsp | 15.21631 tsp |
| 10 metric tbsp | 30.43262 tsp |
| 20 metric tbsp | 60.865241 tsp |
| 50 metric tbsp | 152.163102 tsp |
| 100 metric tbsp | 304.326204 tsp |
| 500 metric tbsp | 1521.631022 tsp |
| 1000 metric tbsp | 3043.262043 tsp |
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Frequently asked questions
What is the source unit in this conversion?
The source unit is the metric tablespoon (metric tbsp). A metric tablespoon is defined as exactly 15 milliliters.
What is the destination unit in this conversion?
The destination unit is the teaspoon (tsp). A US teaspoon is a customary volume unit equal to 4.92892159375 milliliters, commonly used in recipes.
How do I convert metric tablespoon to teaspoon?
Multiply the metric tablespoon value by 3.043262043. For example, 10 metric tbsp × 3.043262043 = 30.43262 tsp.
Is the metric tablespoon to teaspoon conversion exact?
Yes. This conversion uses a fixed factor defined for cooking measurement standards, so results are consistent every time.
Where is this conversion commonly used?
It's used when following recipes, adjusting ingredient quantities, or converting between US customary and metric cooking measurements.
Can I convert teaspoon back to metric tablespoon?
Yes. Multiply the teaspoon value by 0.3285947729 to get metric tablespoon.
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About this conversion
This page converts metric tablespoon (metric tbsp) to teaspoon (tsp) within the cooking converter.
A metric tablespoon is defined as exactly 15 milliliters. A US teaspoon is a customary volume unit equal to 4.92892159375 milliliters, commonly used in recipes.
The formula is tsp = metric tbsp × 3.043262043, based on each unit's fixed relationship to the cooking converter's reference units.
Results are consistent because the conversion relies on a fixed numerical ratio rather than an estimate.
Use the calculator above for instant results, or the table below for common metric tablespoon values already converted to teaspoon.