Of everything on this site, this is the one conversion that's actually simple and stays simple no matter what ingredient you're measuring — which, honestly, is a nice change of pace after writing so many articles about density and packing methods.
The Answer
3 teaspoons = 1 tablespoon. Always. This doesn't change based on whether you're measuring salt, vanilla extract, or baking soda — unlike cup conversions, teaspoon-to-tablespoon is a fixed volume ratio with no ingredient-density complications.
Why This One Stays Clean
Both teaspoons and tablespoons are pure volume units, and the ratio between them (3:1) was standardized that way rather than derived from some other measurement that didn't divide evenly. Compare this to the cup-to-tablespoon relationship (16:1), which comes from cups being defined independently and just not lining up in round numbers with tablespoons.
Common Fractions
| Tablespoons | Teaspoons |
|---|---|
| 1 tbsp | 3 tsp |
| ½ tbsp | 1½ tsp |
| ⅓ tbsp | 1 tsp |
| ¼ tbsp | ¾ tsp |
Measuring Less Than ¼ Teaspoon
Some spice-heavy recipes call for ⅛ teaspoon, or even a pinch smaller than that. Most measuring spoon sets include an ⅛ teaspoon; if yours doesn't, half of a ¼ teaspoon (by eye, in the spoon) gets you close enough for spices, where a small margin of error rarely ruins anything.
Why Recipes Sometimes Write Teaspoons Instead of Tablespoons (or Vice Versa)
Recipe writers generally pick whichever unit avoids awkward fractions. Instead of writing "⅓ tablespoon," a recipe will say "1 teaspoon" — same amount, cleaner number. This is just a writing convention, not a sign that teaspoons and tablespoons are used for different types of ingredients.
A Worked Example
A recipe calls for 4 teaspoons of baking powder, but your only baking-powder scoop is a tablespoon measure. 4 teaspoons ÷ 3 = 1⅓ tablespoons — so, one full tablespoon plus about a third more (roughly 1 teaspoon extra, measured separately if you have a teaspoon on hand, or eyeballed as a bit over a third of the tablespoon).
FAQ
Is this ratio different outside the US?
The teaspoon-to-tablespoon ratio of 3:1 is fairly consistent across most
English-speaking countries, though the absolute size of a tablespoon itself
can differ (Australia notably uses a larger tablespoon) — see our
metric vs
imperial guide.
Does this change for dry vs liquid ingredients?
No — the 3:1 ratio holds for both, since it's a fixed volume relationship,
not something that varies by what's being measured.
What's the fastest way to convert an odd number like 7 teaspoons?
The conversion tool handles this instantly rather than
doing the division by hand each time.