What this calculator does
How many grams in a teaspoon depends on which powder is being measured, since a teaspoon is a fixed volume of 4.93 ml but different powders pack into that volume at different densities. A teaspoon of table salt weighs more than twice as much as a teaspoon of flour.
This calculator converts a teaspoon of powder to grams for nine common baking and kitchen powders, from flour and cocoa to baking soda and protein powder, using the same US teaspoon and per-cup density figures used throughout the site's baking conversions.
The formula
Grams per teaspoon is the grams-per-cup figure for that powder divided by 48, since there are 48 US teaspoons in a US cup (16 tablespoons of 3 teaspoons each). Multiplying that by the number of teaspoons entered gives the total weight.
| Term | Meaning |
|---|---|
| Teaspoon | A US volume measure of 4.93 ml, equal to 1/48 of a US cup or 1/3 of a tablespoon. |
| Powder density | How much a given volume of a powder weighs; a dense, fine powder like table salt weighs more per teaspoon than a light, aerated one like cocoa. |
| Grams per cup | The reference weight for one US cup of the chosen powder, from which the per-teaspoon figure is derived. |
The inputs explained
| Field | What to enter |
|---|---|
| Teaspoons | The number of teaspoons to convert. |
| Powder | The powder being measured, which sets the density used in the conversion. |
When to use it
Converting a recipe measured in teaspoons to grams
A recipe that specifies "1 teaspoon baking soda" converts to a precise gram weight for anyone measuring by kitchen scale rather than by spoon.
Checking small doses of a powder, such as protein powder or a spice
Teaspoon quantities are common for potent additions like baking powder, cinnamon or protein powder, where a gram figure is more exact than eyeballing a spoon.
Scaling a recipe up or down accurately
Working from a gram figure rather than a spoon measure keeps small ingredient quantities, like leavening agents, in the correct proportion when a recipe is doubled or halved.
Worked examples
Every figure in the tables below is produced by this page’s own calculator at build time, so the numbers and the tool always agree. Select any row to load that scenario.
How many grams is a teaspoon, for a spread of common powders?
One teaspoon, weighed for each of the powders this calculator supports.
| Powder | Weight | In tablespoons |
|---|---|---|
| Flour | 2.50 g | 0.333 tbsp |
| Cocoa powder | 1.77 g | 0.333 tbsp |
| Baking powder | 4.00 g | 0.333 tbsp |
| Baking soda | 4.58 g | 0.333 tbsp |
| Cornstarch | 2.67 g | 0.333 tbsp |
| Table salt | 6.08 g | 0.333 tbsp |
Teaspoon to grams for flour, at common recipe quantities
A range of teaspoon quantities of flour, each converted to grams.
| Teaspoons | Weight | In tablespoons |
|---|---|---|
| 1 | 2.50 g | 0.333 tbsp |
| 2 | 5.00 g | 0.667 tbsp |
| 3 | 7.50 g | 1.000 tbsp |
| 6 | 15.00 g | 2.000 tbsp |
| 12 | 30.00 g | 4.000 tbsp |
| 48 | 120.00 g | 16.000 tbsp |
Questions
How many grams in a teaspoon of baking powder?
About 4 g for a level US teaspoon, based on 192 g per US cup of baking powder and 48 teaspoons per cup.
How many grams is a teaspoon of flour?
About 2.5 g, based on 120 g per US cup divided across 48 teaspoons.
Is a teaspoon the same as a tablespoon?
No. A US tablespoon holds 3 US teaspoons, so any weight per teaspoon is exactly a third of the weight per tablespoon for the same powder.
Why do different powders give different gram weights for the same teaspoon?
A teaspoon measures volume, not weight, and powders differ in density. A fine, heavy powder like table salt packs more mass into 4.93 ml than a light, aerated one like cocoa powder or protein powder.
For a full tablespoon-based ingredient converter, see the tablespoons to grams converter. For cup-based ingredient weights, see the grams to cups calculator.