Tsp to Grams Converter

How to use the tsp to grams converter

1. Enter the number of teaspoons you want to convert.
2. Select an ingredient from the dropdown, or choose Custom density and type the value in g/ml.
3. Read the result in grams, which updates automatically as you type.
4. Use the reverse row to see how many teaspoons a given gram amount equals.

How the tsp to grams conversion works

A US teaspoon holds exactly 4.92892159375 milliliters. To find the mass in grams, multiply that volume by the density of the substance:

grams = teaspoons x 4.92892159375 x density (g/ml)

For example, converting 2 teaspoons of all-purpose flour (density 0.51 g/ml): 2 x 4.92892159375 x 0.51 = 5.03 g. Because density varies between ingredients, a single universal factor does not exist. Water at about 4 degrees Celsius has a density of 1.00 g/ml, so one teaspoon of water weighs about 4.93 grams. Honey, being much denser at 1.42 g/ml, weighs nearly 7 grams per teaspoon.

Common ingredient densities

The table below lists approximate densities used in this tsp to grams converter. Values are approximate bulk densities rounded from USDA FoodData Central and the King Arthur ingredient weight chart. Real weights of powders and syrups vary with brand, humidity and packing, so results are estimates; weigh on a scale when precision matters. Sifting, packing or temperature can shift these numbers.

Converting grams to teaspoons

To go from grams to teaspoons, divide the mass by the teaspoon volume and the density:

teaspoons = grams / (4.92892159375 x density)

This grams to tsp direction is useful when a recipe lists weights but you only have measuring spoons. For instance, if you need 10 grams of granulated sugar (density 0.84 g/ml), the math gives 10 / (4.92892159375 x 0.84) = 2.42 tsp, or roughly two and a half teaspoons. The converter above shows this reverse value automatically.

If you need larger volumes, consider converting to tablespoons instead. One tablespoon equals three teaspoons, so you can use the tbsp to grams tool for bigger batches. For liquid-only conversions without density, the tsp to ml page handles pure volume.

Why density matters in cooking

Volume measures like teaspoons assume every ingredient fills space the same way, but powders trap air while liquids do not. A level teaspoon of sifted flour weighs significantly less than a scooped one because the bulk density changes. That is why professional bakers prefer weighing ingredients in grams rather than relying on spoon measurements.

When you convert grams to teaspoons for baking, always note whether the recipe calls for sifted or unsifted flour, packed or loose brown sugar. Small differences compound across multiple cups. Using a scale alongside this converter helps verify that your volume estimate matches the intended weight.

US teaspoon vs metric teaspoon

The US customary teaspoon is defined as exactly 4.92892159375 ml (one sixth of a US fluid ounce). Many countries use a rounded metric teaspoon of exactly 5 ml. The difference is about 1.4 percent, which rarely matters for home cooking but can accumulate in large-scale recipes or precise chemistry work.

This calculator uses the exact US teaspoon definition. If your recipe originates from Australia, the UK or another country that adopted the 5 ml metric teaspoon, multiply your teaspoon count by 5 instead of 4.9289 before applying the density. For other weight conversions such as ounces to grams or grams to cups, use the dedicated tools on this site.

Worked examples