Precise teaspoon to milliliter conversions for spices, extracts, and seasoning blends. Switch between US, Metric, and Imperial teaspoons with one click. 100% free, no signup required.
Baking • 0.125-3
1 US teaspoon = 4.929 ml • 1/8 (0.125)-3 tsp
| Teaspoons (tsp) | Milliliters (ml) | Tablespoons |
|---|---|---|
| 1/8 (0.125) | 0.62 | 0.042 (0.04) |
| 1/4 (0.25) | 1.23 | 0.083 (0.08) |
| 3/8 (0.375) | 1.85 | 1/8 (0.13) |
| 1/2 (0.5) | 2.46 | 0.167 (0.17) |
| 5/8 (0.625) | 3.08 | 0.208 (0.21) |
| 3/4 (0.75) | 3.70 | 1/4 (0.25) |
| 7/8 (0.875) | 4.31 | 0.292 (0.29) |
| 1 | 4.93 | 1/3 (0.33) |
| 1 1/8 (1.125) | 5.54 | 3/8 (0.38) |
| 1 1/4 (1.25) | 6.16 | 0.417 (0.42) |
| 1 3/8 (1.375) | 6.78 | 0.458 (0.46) |
| 1 1/2 (1.5) | 7.39 | 1/2 (0.5) |
| 1 5/8 (1.625) | 8.01 | 0.542 (0.54) |
| 1 3/4 (1.75) | 8.63 | 0.583 (0.58) |
| 1 7/8 (1.875) | 9.24 | 5/8 (0.63) |
| 2 | 9.86 | 2/3 (0.67) |
| 2 1/8 (2.125) | 10.47 | 0.708 (0.71) |
| 2 1/4 (2.25) | 11.09 | 3/4 (0.75) |
| 2 3/8 (2.375) | 11.71 | 0.792 (0.79) |
| 2 1/2 (2.5) | 12.32 | 0.833 (0.83) |
| 2 5/8 (2.625) | 12.94 | 7/8 (0.88) |
| 2 3/4 (2.75) | 13.55 | 0.917 (0.92) |
| 2 7/8 (2.875) | 14.17 | 0.958 (0.96) |
| 3 | 14.79 | 1 |
1 US teaspoon = 4.929 ml
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Different countries use different teaspoon sizes. Know which one your recipe uses for perfect results.
4.93 ml
(4.929 ml exact)
The standard measurement in American recipes. Found in most US cookbooks and online recipes.
Common in:
💡 1 US tsp = 1/3 tablespoon = 1/48 cup
5 ml
(exact)
Used in metric-system countries. Exactly 5 milliliters with no decimal math needed.
Common in:
💡 Slightly larger than US teaspoons (0.07ml difference)
5.92 ml
(5.919 ml exact)
Older British and Canadian measurement. Nearly 1ml larger than US teaspoons and still found in heritage cookbooks.
Found in:
⚠️ 1ml larger than US tsp - check your recipe source!
The 0.07ml gap between US and Metric teaspoons adds up in multi-teaspoon recipes. Imperial teaspoons are almost 1ml larger, which impacts baking powder, salt, and spices.
Rule of thumb:
Master accurate teaspoon measurements for consistent cooking and baking results.
Pro Tip
For sticky liquids like vanilla or honey, wipe the spoon clean so you add the full teaspoon.
Pro Tip
Baking powder/soda: level only. Salt: fine-grain is most accurate. Spices: tap container, then measure.
Pro Tip
Laminate this chart and stick it inside your spice cabinet for instant reference!
Teaspoons are essential for small, precise measurements that change flavor fast.
Small amounts, big impact
Small amounts, big impact
Small amounts, big impact
Small amounts, big impact
Teaspoons measure potent ingredients. One extra teaspoon of baking soda can make cookies spread too much; one missing teaspoon of salt can make bread taste flat.
Rule of thumb: For salt, spices, baking powder, and extracts, always use measuring teaspoons for repeatable results.
| Teaspoons | Tablespoons | ML (US) | Common Use |
|---|---|---|---|
| 1 tsp | 1/3 tbsp | 4.93 ml | Vanilla extract |
| 1.5 tsp | 1/2 tbsp | 7.39 ml | Small seasoning |
| 2 tsp | 2/3 tbsp | 9.86 ml | Spice mix |
| 3 tsp | 1 tbsp | 14.79 ml | ⭐ Standard conversion |
| 6 tsp | 2 tbsp | 29.57 ml | 1/8 cup |
| 12 tsp | 4 tbsp | 59.15 ml | 1/4 cup |
| 48 tsp | 16 tbsp | 236.59 ml | 1 cup |
1 tsp = 4.93ml (US)
When to use teaspoons:
1 tbsp = 3 tsp = 14.79ml (US)
When to use tablespoons:
“Three T's make a Big T”
3 teaspoons (small T) = 1 Tablespoon (big T)
Complete your kitchen conversion toolkit
Convert tablespoons to milliliters for larger measurements
Kitchen staple for bigger volume conversions
Weight conversions for precise baking
Oven temperature conversions
It depends on the system: 1 US teaspoon = 4.93ml (4.929ml exact), 1 Metric teaspoon = 5ml (exact), 1 Imperial teaspoon = 5.92ml. Most American recipes use US teaspoons.
3 teaspoons = 1 tablespoon across US, metric, and imperial measurements. This 1:3 ratio is the most important kitchen conversion to remember.
No. Coffee, dessert, or tea spoons vary widely (2–7ml). Always use standardized measuring teaspoons for accuracy, especially when baking.
Use a 1/2 teaspoon measuring spoon. If you do not have one: use two 1/4 teaspoons, or fill a 1 teaspoon measure halfway and level carefully.
Heaping teaspoons mound above the rim (~1.5x). Scant teaspoons are just below the rim (~0.75–0.9x). Level teaspoons are standard. Use the style the recipe calls for.
Volume stays the same, but technique changes: liquids to the brim, dry powders spooned and leveled, spices un-packed, sticky ingredients scraped clean.
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