Teaspoons to Grams Converter

Understanding Teaspoons to Grams

One US teaspoon equals 4.929 millilitres of volume. When converting to grams (weight), the conversion depends entirely on the ingredient's density. One teaspoon of table salt weighs about 6 grams, while one teaspoon of baking powder weighs 4 grams, one teaspoon of cinnamon weighs 2.6 grams, and one teaspoon of vanilla extract weighs about 4.2 grams. For ingredient-specific conversions, see our ingredient conversion pages.

When to Use Teaspoons to Grams

Need precision for tiny amounts? Converting teaspoons to grams is crucial for small ingredient measurements in baking, where precision matters. Many recipes call for tiny amounts of ingredients like salt, baking powder, or spices in teaspoons, but professional recipes often use grams for accuracy. This is especially important for leavening agents where too much or too little affects rise.

Practical Tips

This conversion is most important for leavening agents and spices, where small variations can significantly affect the final result. It's also useful when you have a recipe in teaspoons but prefer working with a kitchen scale, or when adapting recipes between measurement systems. For precision, use a scale that measures to 0.1g for small quantities. For precision baking, check out our guide on how to measure ingredients correctly.

Quick Tips

• Always specify the ingredient — density varies dramatically between ingredients
• One US teaspoon = 4.929ml (approximately 5ml)
• For precision baking, use a kitchen scale for small measurements
• Leavening agents like baking powder and bicarbonate of soda require accurate measurement

For a comprehensive conversion chart, see our cups to grams conversion chart with over 100 ingredients.

Common Mistakes to Avoid

The biggest mistake is using a generic conversion like "1 teaspoon = 5 grams" for all ingredients. This only works for water. Salt is heavier (6g per teaspoon), while cinnamon is lighter (2.6g per teaspoon). Another error is not accounting for salt type — 1 teaspoon of table salt (6g) weighs nearly twice as much as 1 teaspoon of Diamond Crystal kosher salt (3g) due to crystal size differences.

When Precision Matters

Precision is critical for leavening agents (baking powder, bicarbonate of soda), where half a teaspoon too much can cause collapse or metallic taste. Salt also requires accuracy — the difference between 1 and 2 teaspoons can make food inedible. For spices in larger quantities, precision helps maintain flavour balance. For a pinch of spice in a large pot, approximate measurements are fine.