Leaveners, Salt & Spices
Convert teaspoons of baking powder to grams
One teaspoon of baking powder weighs about 4 g, and half a teaspoon comes to roughly 2 g. Enter any amount below to convert it, or use the chart further down as a quick reference while you cook.
1 tsp of baking powder =
4 g
- oz
- 0.141
- kg
- 0.0040
- lb
- 0.0088
Baking Powder: 192 g per US cup · NIST Handbook 133. 1 teaspoon = 4 g. Leavening errors are unforgiving, so measure with level spoons or a 0.1 g scale.
Full baking powder chart →Baking Powder at a glance
Every number on this page comes from a single figure: 192 grams per US cup (NIST Handbook 133).
- 1 cup
- 192 g
- 1 tablespoon
- 12 g
- 1 teaspoon
- 4 g
- 1 cup in ounces
- 6.77 oz
- 100 g in cups
- 0.521 cups
- Density
- 0.81 g/ml
teaspoons to grams chart for baking powder
Print it, screenshot it, or bookmark this page — these are the amounts recipes ask for most often.
| Teaspoons (US) | Grams | Ounces (weight) | Pounds |
|---|---|---|---|
| 1/4 tsp | 1 g | 0.035 oz | 0.0022 lb |
| 1/2 tsp | 2 g | 0.071 oz | 0.0044 lb |
| 3/4 tsp | 3 g | 0.106 oz | 0.0066 lb |
| 1 tsp | 4 g | 0.141 oz | 0.0088 lb |
| 1 1/2 tsp | 6 g | 0.212 oz | 0.013 lb |
| 2 tsp | 8 g | 0.282 oz | 0.018 lb |
| 3 tsp | 12 g | 0.423 oz | 0.026 lb |
| 4 tsp | 16 g | 0.564 oz | 0.035 lb |
| 6 tsp | 24 g | 0.847 oz | 0.053 lb |
| 8 tsp | 32 g | 1.13 oz | 0.071 lb |
How this conversion is calculated
Volume-to-weight conversions are only as good as the density behind them. We treat baking powder as 192 g per US customary cup, which works out to 0.812 g/ml. From there:
- Your teaspoons figure is converted into millilitres or grams using standard unit sizes (tsp = 4.93 ml).
- The density above bridges volume and weight in whichever direction you need.
- The result is rounded the way a cook would round it — to the nearest gram, or to a usable fraction such as 1/2 cups.
Measuring baking powder accurately
1 teaspoon = 4 g. Leavening errors are unforgiving, so measure with level spoons or a 0.1 g scale.
If a recipe matters to you — bread, macarons, anything with a tight hydration or ratio — weigh it. A £10 digital scale removes the single largest source of variation in home baking, and it is faster than washing three measuring cups.
When cups are fine
- Liquids measured in a proper jug, where volume is the honest unit anyway.
- Forgiving savoury cooking: soups, stews, stir-fries, marinades.
- Small amounts of leaveners and spices, as long as you use level spoons.
Frequently asked questions
How many grams are in 1 teaspoon of baking powder?
1 teaspoon of baking powder is 4 g. This is based on a density of 192 g per US cup.
How many grams are in 2 teaspoons of baking powder?
2 teaspoons of baking powder is 8 g, and 2 g for half a teaspoon.
How much is 100 g of baking powder in cups?
100 g of baking powder is about 1/2 cups. Weight is always the more reliable measurement, so use a scale when the recipe gives grams.
Why do other sites give a different number for baking powder?
1 teaspoon = 4 g. Leavening errors are unforgiving, so measure with level spoons or a 0.1 g scale.
Do UK and Australian cups give the same result?
No. A US customary cup is 236.6 ml, a metric cup used in Australia and New Zealand is 250 ml, and an old UK imperial cup is 284 ml. Our default is the US cup, but you can pick metric cups in the converter.