Convert Teaspoon (US) (tsp (US)) to Teaspoon (Metric) (tsp (m)) instantly.
Teaspoon (US) to Teaspoon (Metric) conversion
1 Teaspoon (US) (tsp (US)) = 0.98578432 Teaspoon (Metric) (tsp (m)). To convert Teaspoon (US) to Teaspoon (Metric), multiply the value by 0.98578432.
| Teaspoon (US) (tsp (US)) | Teaspoon (Metric) (tsp (m)) |
|---|---|
| 1 | 0.98578432 |
| 2 | 1.9715686 |
| 5 | 4.9289216 |
| 10 | 9.8578432 |
| 25 | 24.644608 |
| 50 | 49.289216 |
| 100 | 98.578432 |
| 1000 | 985.78432 |
Frequently asked questions
How many Teaspoon (Metric) are in one Teaspoon (US)?
One Teaspoon (US) (tsp (US)) equals 0.98578432 Teaspoon (Metric) (tsp (m)).
How do I convert Teaspoon (US) to Teaspoon (Metric)?
To convert Teaspoon (US) to Teaspoon (Metric), multiply the value by 0.98578432.
What is 10 Teaspoon (US) in Teaspoon (Metric)?
10 Teaspoon (US) = 9.8578432 Teaspoon (Metric).
About these units
Teaspoon (US) (tsp (US))
The US teaspoon equals 4.92892 mL, though rounded to 5 mL in most practical applications. Before standardization, teaspoon sizes varied widely across households and manufacturers. With the rise of packaged foods, pharmaceuticals, and industrial recipes, the US standardized teaspoon values brought consistency to cooking and medicine. Today, the teaspoon remains the most common household unit for measuring small amounts—especially spices, extracts, and medicines.
Teaspoon (Metric) (tsp (m))
The metric teaspoon is universally fixed at 5 mL, offering complete consistency across countries that use metric culinary measurements. This simplicity is a major advantage over historical teaspoon variations. In metric recipe writing—especially in Australia, New Zealand, and parts of Europe—teaspoons serve as standardized micro-measures that are easy to convert and scale. Its widespread adoption demonstrates the advantages of aligning traditional kitchen practices with the predictable structure of the metric system.