Grams to teaspoons converter

Why convert grams to teaspoons?

A teaspoon is a measure of volume, while a gram is a measure of mass. The two are not interchangeable until you know one extra thing about the ingredient: its density. A teaspoon of honey weighs far more than a teaspoon of flour, even though both fill the same little spoon. That is why a recipe written in grams can be tricky if your kitchen only has spoons, and vice versa.

This grams to teaspoons converter bridges the gap. Pick an ingredient, type a weight in grams, and it tells you how many teaspoons that is — or go the other way and turn teaspoons into grams. Because the calculation is driven by density, the answer is correct for each specific ingredient rather than a one-size-fits-all guess.

1. Ingredient-aware: Each ingredient has its own density, so the result reflects what you are actually measuring.
2. Two-way: Enter grams to get teaspoons, or enter teaspoons to get grams.
3. Different teaspoon sizes: US, UK, and metric teaspoons are all supported.
4. Custom ingredients: If your ingredient is not in the list, enter its density manually.

Teaspoon sizes

Not every teaspoon is the same. The converter supports the three most common definitions:

• US teaspoon: 4.92892 ml
• UK teaspoon: 5.91939 ml
• Metric teaspoon: 5 ml

The default is the US teaspoon, which is the one most baking recipes assume.

How density works

The mass of an ingredient in a teaspoon depends entirely on its density. Here are the densities used by this converter for common kitchen ingredients:

Formula

First convert teaspoons to milliliters (1 US teaspoon = 4.92892 ml), then multiply by density to get grams:

$\text{Grams} = \text{Teaspoons} \times 4.92892 \text{ ml} \times \text{Density (g/ml)}$

To go from grams to teaspoons, simply rearrange:

$\text{Teaspoons} = \frac{\text{Grams}}{4.92892 \text{ ml} \times \text{Density (g/ml)}}$

Convert grams to teaspoons: Examples

The examples below use US teaspoons (4.92892 ml).

Water (density: 1 g/ml)

• 1 teaspoon weighs $1 \times 4.92892 \times 1 = 4.92892 \text{ g}$
• So 4.92892 g of water equals exactly $\frac{4.92892}{4.92892 \times 1} = 1 \text{ teaspoon}$

Sugar (density: 0.845 g/ml)

• 1 teaspoon of granulated sugar weighs $1 \times 4.92892 \times 0.845 = 4.16494 \text{ g}$
• So 4.16494 g of sugar equals about $\frac{4.16494}{4.92892 \times 0.845} = 1 \text{ teaspoon}$

Flour (density: 0.593 g/ml)

• 1 teaspoon of all-purpose flour weighs $1 \times 4.92892 \times 0.593 = 2.92285 \text{ g}$
• 2 teaspoons weigh $2 \times 4.92892 \times 0.593 = 5.84570 \text{ g}$

Frequently asked questions

How many grams are in a teaspoon of sugar?

Using the US teaspoon (4.92892 ml) and a sugar density of 0.845 g/ml, one teaspoon of granulated sugar weighs $4.92892 \times 0.845 = 4.16494 \text{ grams}$, which rounds to roughly 4.2 grams.

How many teaspoons is 10 grams of flour?

Flour has a density of about 0.593 g/ml, so each US teaspoon holds $4.92892 \times 0.593 = 2.92285 \text{ grams}$. Dividing gives $\frac{10}{2.92285} \approx 3.42 \text{ teaspoons}$.

Why isn’t a teaspoon of every ingredient the same weight?

Because ingredients have different densities. A teaspoon always holds the same volume (4.92892 ml for a US teaspoon), but a denser ingredient packs more mass into that volume. That is why a teaspoon of honey (1.42 g/ml) weighs much more than a teaspoon of flour (0.593 g/ml).

What if my ingredient isn’t listed?

Choose the “Custom” option and enter the ingredient’s density directly. You can find densities online, in cooking references, or sometimes printed on product packaging.

Does it matter which teaspoon I use?

Yes. A UK teaspoon (5.91939 ml) holds about 20% more than a US teaspoon (4.92892 ml), and a metric teaspoon is 5 ml. Pick the one your recipe assumes; the converter recalculates instantly when you switch.

How do I convert grams to teaspoons of water?

Water has a density of 1 g/ml, so 1 ml weighs 1 gram. Divide the weight in grams by the volume of one teaspoon: for a US teaspoon, $\frac{\text{grams}}{4.92892}$ gives the number of teaspoons. For example, 10 g of water is $\frac{10}{4.92892} \approx 2.03 \text{ teaspoons}$.