The milligram is one-thousandth of a gram, used for very small ingredient amounts such as spices or additives.
Milligram to Teaspoon
Convert Milligram 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 = mg × 0.0002028841362
Results update instantly for Milligram to Teaspoon conversions.
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Formula
tsp = mg × 0.0002028841362
mg = tsp × 4928.921594
Conversion table
| 1 mg | 2.028841e-4 tsp |
| 5 mg | 0.001014 tsp |
| 10 mg | 0.002029 tsp |
| 20 mg | 0.004058 tsp |
| 50 mg | 0.010144 tsp |
| 100 mg | 0.020288 tsp |
| 500 mg | 0.101442 tsp |
| 1000 mg | 0.202884 tsp |
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Frequently asked questions
What is the source unit in this conversion?
The source unit is the milligram (mg). The milligram is one-thousandth of a gram, used for very small ingredient amounts such as spices or additives.
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 milligram to teaspoon?
Multiply the milligram value by 0.0002028841362. For example, 10 mg × 0.0002028841362 = 0.002029 tsp.
Is the milligram 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 milligram?
Yes. Multiply the teaspoon value by 4928.921594 to get milligram.
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About this conversion
This page converts milligram (mg) to teaspoon (tsp) within the cooking converter.
The milligram is one-thousandth of a gram, used for very small ingredient amounts such as spices or additives. A US teaspoon is a customary volume unit equal to 4.92892159375 milliliters, commonly used in recipes.
The formula is tsp = mg × 0.0002028841362, 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 milligram values already converted to teaspoon.