A US tablespoon equals 3 US teaspoons, or about 14.79 milliliters.
Tablespoon to Metric tablespoon
Convert Tablespoon to Metric tablespoon instantly. Free online cooking unit converter with exact formula, conversion table and FAQ.
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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 metric tablespoon is defined as exactly 15 milliliters.
metric tbsp = tbsp × 0.9857843188
Results update instantly for Tablespoon to Metric tablespoon conversions.
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Formula
metric tbsp = tbsp × 0.9857843188
tbsp = metric tbsp × 1.014420681
Conversion table
| 1 tbsp | 0.985784 metric tbsp |
| 5 tbsp | 4.928922 metric tbsp |
| 10 tbsp | 9.857843 metric tbsp |
| 20 tbsp | 19.715686 metric tbsp |
| 50 tbsp | 49.289216 metric tbsp |
| 100 tbsp | 98.578432 metric tbsp |
| 500 tbsp | 492.892159 metric tbsp |
| 1000 tbsp | 985.784319 metric tbsp |
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Frequently asked questions
What is the source unit in this conversion?
The source unit is the tablespoon (tbsp). A US tablespoon equals 3 US teaspoons, or about 14.79 milliliters.
What is the destination unit in this conversion?
The destination unit is the metric tablespoon (metric tbsp). A metric tablespoon is defined as exactly 15 milliliters.
How do I convert tablespoon to metric tablespoon?
Multiply the tablespoon value by 0.9857843188. For example, 10 tbsp × 0.9857843188 = 9.857843 metric tbsp.
Is the tablespoon to metric tablespoon 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 metric tablespoon back to tablespoon?
Yes. Multiply the metric tablespoon value by 1.014420681 to get tablespoon.
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About this conversion
This page converts tablespoon (tbsp) to metric tablespoon (metric tbsp) within the cooking converter.
A US tablespoon equals 3 US teaspoons, or about 14.79 milliliters. A metric tablespoon is defined as exactly 15 milliliters.
The formula is metric tbsp = tbsp × 0.9857843188, 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 tablespoon values already converted to metric tablespoon.