Teaspoon to Grams: The Ultimate Conversion Guide
Learn exactly how to convert teaspoon to grams for baking and cooking. Complete ingredient weight charts, the density formula, and common mistakes to avoid.
How Many Grams Are in a Teaspoon?
A US teaspoon holds about 4.93 grams of water (often rounded to 5 grams). But for cooking and baking, the answer changes with every ingredient, because teaspoon measures volume and gram measures weight. One teaspoon of salt weighs about 6 grams, while one teaspoon of all-purpose flour weighs only about 2.5 grams.
To convert between them accurately, you need the ingredient's density. Use our teaspoons to grams converter to get exact results for any ingredient instantly.
The Density Problem Explained
Density is how much mass fits into a given volume, measured in grams per milliliter (g/mL). Water has a density of 1 g/mL, which is why 1 teaspoon (4.93 mL) of water weighs 4.93 grams.
But salt, sugar, flour, and honey all have different densities. A teaspoon of honey weighs more than a teaspoon of flour because honey is denser and takes up less space per unit of weight. In baking, this difference is the difference between a light cake and a brick.
Complete Teaspoon to Grams Chart
Here are the approximate weights of 1 teaspoon for the most common kitchen ingredients. These assume lightly leveled measurements (unless noted):
| Ingredient | 1 tsp weight |
|---|---|
| Water | 4.93 g |
| Milk (whole) | 5.1 g |
| Granulated sugar | 4.2 g |
| Brown sugar (packed) | 5.3 g |
| Powdered sugar | 2.5 g |
| Table salt | 6.0 g |
| Kosher salt (Diamond Crystal) | 2.8 g |
| Fine sea salt | 6.1 g |
| All-purpose flour | 2.6 g |
| Bread flour | 2.9 g |
| Baking powder | 4.2 g |
| Baking soda | 4.6 g |
| Cocoa powder | 2.5 g |
| Ground cinnamon | 2.6 g |
| Honey | 7.0 g |
| Butter | 4.7 g |
| Olive oil | 4.4 g |
| Active dry yeast | 3.1 g |
These are approximate values. Always use a kitchen scale for critical baking where precision matters.
The Formula to Convert Teaspoons to Grams
If you want to calculate 1 tsp to grams by hand, here is the formula:
grams = teaspoons × density (g/mL) × 4.93
Since 1 teaspoon equals 4.92892 mL, you multiply the number of teaspoons by the ingredient density, then by 4.92892.
Worked example: How many grams are in 2 teaspoons of granulated sugar (density 0.845 g/mL)?
- 2 × 4.92892 = 9.85784 mL
- 9.85784 × 0.845 = 8.33 grams
So 2 teaspoons of granulated sugar ≈ 8.3 grams.
Why You Need a Teaspoons to Grams Converter
Because the conversion changes with every ingredient, a dynamic converter that lets you select the exact ingredient is far more reliable than memorizing numbers. As shown above, guessing that "1 teaspoon equals 5 grams" would massively over-measure kosher salt (which is actually ~2.8 g) and under-measure honey (which is ~7 g).
Common Mistakes to Avoid
- Assuming all teaspoons are 5 grams. That's only true for water. Salt, flour, and sugar all differ.
- Scooping flour directly. Scooping compresses flour. Spoon it in and level it for consistent results.
- Ignoring salt type. One teaspoon of Diamond Crystal kosher salt (2.8 g) is half the weight of table salt (6 g). Swapping them ruins recipes.
Precision in Baking: Why Grams Beat Teaspoons
Baking is a chemical reaction. A few grams of baking soda off either way can turn a cake into a flat, soapy mess. Professional bakers measure everything by weight because volume measurements are inconsistent: how you scoop flour changes its volume, but 120 grams of flour is always 120 grams.
By understanding how to convert teaspoon in grams, you can follow any recipe confidently and get consistent, delicious results.