1 tsp onion powder in grams
1 tsp of onion powder = 2.5 grams · 4.93 ml · 0.09 oz
That is one teaspoon of onion powder, scooped and levelled with the back of a knife. A full US cup of onion powder weighs 120 g and holds 48 teaspoons, so 1 tsp comes to 2.5 g. Use the converter for any other amount.
Based on a measured density of 120 g per US cup (236.6 ml), spooned and levelled rather than dipped. Last reviewed .
How 1 tsp of onion powder works out
A US teaspoon is 1/48 of a cup, a third of a tablespoon, so take the weight of a cup of onion powder and multiply: 120 × 0.021 = 2.5 g. By volume that is 4.93 ml, the same in the US, UK, Canada and New Zealand.
Australia is the exception: an Australian tablespoon holds 20 ml, not 15, though Australian teaspoons are the same 5 ml as everywhere else. Heaped spoons are not a measure at all; a heaped spoonful can hold half as much again.
Tip: Onion powder dissolves and distributes evenly, making it ideal for dry rubs and dressings where chopped onion would be intrusive.
Other onion powder amounts
1 tsp of onion powder: common questions
How many grams is 1 tsp of onion powder?
About 2.5 grams, for a level US teaspoon and a full US cup of onion powder weighing 120 grams.
How many ml is 1 tsp?
4.93 ml. Volume does not depend on the ingredient; the gram figure does.
Is 1 tsp different in Australia?
No. Teaspoons are 5 ml in Australia too; only the tablespoon is larger there.
For every other amount, see the full onion powder cups to grams tables.