Convert tbsp to tsp instantly using a precise conversion factor.
Multiply tablespoons by 3. The calculator applies this relationship immediately and supports positive, negative, and decimal values where appropriate.
This conversion is commonly useful for scaling recipes, seasoning, baking, and medicine measurements.
| tbsp | tsp |
|---|---|
| 1 tbsp | 3 tsp |
| 5 tbsp | 15 tsp |
| 10 tbsp | 30 tsp |
| 25 tbsp | 75 tsp |
| 100 tbsp | 300 tsp |
For 10 tbsp, multiply 10 by 3. The result is 30 tsp.
Multiply tablespoons by 3.
Yes. Enter any decimal value and the result updates automatically.
Volume conversions are reliable for measuring liquids, but converting a food from volume to weight requires its density. A cup of flour does not weigh the same as a cup of sugar or water. U.S. customary cups and fluid ounces also differ from some imperial measures, so this page labels the convention used by its formula.
For repeatable baking, a kitchen scale is usually more precise than cups and spoons. Level dry ingredients unless a recipe says otherwise, read liquid measures at eye level, and avoid treating a volume conversion as a mass conversion. The calculator is intended for arithmetic assistance; the recipe’s own stated measurement system takes priority.
The calculation runs locally in your browser: the number you enter is multiplied or divided using the stated factor, and the result is formatted for readability. Convertly does not send calculator entries to a server. We preserve more precision internally than is normally useful on screen, so you can enter decimals without the calculator repeatedly rounding intermediate values.
Reviewed: September 3, 2026. Conversion relationships are checked against recognized measurement definitions, including the International System of Units and U.S. National Institute of Standards and Technology measurement guidance. Read our calculation methodology and source policy for definitions, rounding rules, limitations, and correction procedures.
Before converting, confirm that the input unit matches the value you have and that the output unit is the one required. Enter the unrounded source value whenever possible. After calculating, choose a sensible number of decimal places for the task rather than copying every digit automatically.
A useful cross-check is to estimate the direction and approximate size of the answer. Converting to a smaller unit usually produces a larger number; converting to a larger unit usually produces a smaller number. If the result differs greatly from that expectation, check for a misplaced decimal, a confused unit abbreviation, or the reverse conversion. The formula and worked example on this page are provided so the result can be independently checked.