How to use the Grams to Teaspoons Converter
Grams measure mass; teaspoons measure volume. The two are only connected through an ingredient's density — how much mass fits in a given volume. This calculator converts grams to US teaspoons using the formula:
teaspoons = grams ÷ (density in g/mL × 4.92892)
The constant 4.92892 is the number of milliliters in one US teaspoon (the standard US customary teaspoon used in recipes). Divide grams by density to get milliliters, then divide milliliters by 4.92892 to get teaspoons. Pick the ingredient from the dropdown to load a typical density, or enter your own if you know the exact figure (for example, from a food label or a lab measurement).
Why there's no single "grams to teaspoons" number
A teaspoon of water weighs about 4.9g, but a teaspoon of table salt weighs about 5.9g and a teaspoon of all-purpose flour weighs only about 2.6g. Salt packs more tightly than flour, so the same volume holds more mass. That is why any grams-to-teaspoons conversion must specify (or assume) an ingredient — "5 grams" alone is not enough information to know how many teaspoons that is.
Typical ingredient densities (grams per milliliter)
- Water: ~1.0 g/mL → 1 tsp ≈ 4.93 g
- Granulated sugar: ~0.845 g/mL → 1 tsp ≈ 4.17 g
- Table salt: ~1.2 g/mL → 1 tsp ≈ 5.91 g
- All-purpose flour: ~0.53 g/mL → 1 tsp ≈ 2.61 g
- Honey: ~1.42 g/mL → 1 tsp ≈ 7.00 g
- Butter, melted: ~0.911 g/mL → 1 tsp ≈ 4.49 g
- Baking powder / baking soda: ~0.36 g/mL → 1 tsp ≈ 1.77 g
These are averages for typical commercial products; actual density varies with brand, moisture content, and how tightly an ingredient is packed into the spoon.
Accuracy tips
- For baking, weigh ingredients on a kitchen scale whenever a recipe gives grams — converting back to spoons re-introduces the packing-density uncertainty the recipe writer was trying to avoid.
- Level dry ingredients across the top of the spoon; a heaping teaspoon can hold 1.5–2x the volume of a level one.
- For amounts under about 1 gram (a pinch of spice, for instance), teaspoon measurements are more practical than trying to weigh on a home scale, since most kitchen scales are only accurate to about ±1 g.
- Remember the US teaspoon (4.92892 mL) differs slightly from the UK/Commonwealth metric teaspoon (5 mL exactly) and the older imperial teaspoon (~5.919 mL) — recipes from different countries can mean slightly different volumes.