Teaspoon (US) to Cup (US) Converter
Volume · unit-converter
Convert Teaspoon (US) to Cup (US) with a fixed input and output unit, step-by-step formula line, and reference tables. All calculations use liter-based factors (US fluid measures, imperial UK units, SI cubic meters).
Calculator
From: Teaspoon (US) (tsp)
To: Cup (US) (cup)
About Teaspoon (US)
The US teaspoon is 1/6 US fluid ounce (about 4.9289 ml). US recipes use teaspoons for spices and small liquid amounts.
About Cup (US)
The US customary cup is 236.588 ml (half a US liquid pint). US baking recipes frequently measure dry and liquid ingredients in cups.
How to convert teaspoons (us) to cups (us)
1 teaspoon (us) is equal to 0.02083333333333 cup (us):
1 tsp = (0.00492892159375 L ÷ 0.2365882365 L) cup = 0.02083333333333 cup
Each teaspoon (us) is defined as 0.00492892159375 L and each cup (us) as 0.2365882365 L, so one tsp equals 0.00492892159375 ÷ 0.2365882365 cup = 0.02083333333333 cup.
Let V(tsp) be the numeric value of the same volume measured in Teaspoon (US) (tsp), and V(cup) the value in Cup (US) (cup). Then:
V(cup) = V(tsp) × (0.00492892159375 / 0.2365882365)
Equivalently, divide by how many tsp fit into one cup (liters per cup divided by liters per tsp):
V(cup) = V(tsp) ÷ 48
Or: cup (us) = teaspoon (us) ÷ 48
Examples
Example #1: Convert 20 tsp to cup (us)
20 tsp = 20 tsp × (0.00492892159375/0.2365882365) cup = 0.4166666667 cup
20 tsp = 20 tsp ÷ 48 = 0.4166666667 cup
Example #2: Convert 50 tsp to cup (us)
50 tsp = 50 tsp × (0.00492892159375/0.2365882365) cup = 1.0416666667 cup
50 tsp = 50 tsp ÷ 48 = 1.0416666667 cup
Summary
To convert Teaspoon (US) to Cup (US), multiply the value in tsp by the ratio of liters per tsp divided by liters per cup. Equivalently: value_cup = value_tsp × (0.00492892159375 / 0.2365882365). Numerically, 1 tsp equals 0.020833333333333332 cup.
Relationship context
Both units are US customary fluid / volume in this tool’s grouping. Conversions use fixed liter equivalents, so factors are consistent for cooking, engineering, and cross-checking labels. The factor from Teaspoon (US) to Cup (US) is 2.083333e-2 (1 tsp = 0.020833333333333332 cup).
Conversion tables
| Teaspoon (US) (tsp) | Cup (US) (cup) |
|---|---|
| 0.1 | 0.0020833333 |
| 1 | 0.0208333333 |
| 2 | 0.0416666667 |
| 3 | 0.0625 |
| 4 | 0.0833333333 |
| 5 | 0.1041666667 |
| 6 | 0.125 |
| 7 | 0.1458333333 |
| 8 | 0.1666666667 |
| 9 | 0.1875 |
| Teaspoon (US) (tsp) | Cup (US) (cup) |
|---|---|
| 10 | 0.2083333333 |
| 20 | 0.4166666667 |
| 30 | 0.625 |
| 40 | 0.8333333333 |
| 50 | 1.0416666667 |
| 60 | 1.25 |
| 70 | 1.4583333333 |
| 80 | 1.6666666667 |
| 90 | 1.875 |
| 100 | 2.0833333333 |