swap_horiz Need cups to teaspoons instead?

20 Teaspoons to Cups

20 teaspoons equals 0.4167 cups using the tsp to cup formula. Scroll down for the full calculation.

20 tsp = 0.4167 cup
tsp ÷ 48 = cup
Try: 15 tsp to cup 19 tsp to cup 21 tsp to cup 25 tsp to cup
20 tsp is also
20 tsp = 0.0986 L 20 tsp = 0.026 gal 20 tsp = 98.58 mL 20 tsp = 3.33 fl oz 20 tsp = 0.2083 pt 20 tsp = 0.1042 qt 20 tsp = 6.67 tbsp
tsp
0.4167 cup

Step-by-Step Calculation

tsp ÷ 48 = cup
  1. Start with 20 tsp
  2. Divide by 48: 20 ÷ 48 = 0.4167
  3. Result: 20 tsp = 0.4167 cup

This conversion factor (0.020833) is the same for every teaspoon to cup calculation.

Teaspoon to Cup Conversion Table

Teaspoons (tsp) Cups (cup)
1 tsp 0.0208 cup
2 tsp 0.0417 cup
5 tsp 0.1042 cup
10 tsp 0.2083 cup
15 tsp 0.3125 cup
20 tsp 0.4167 cup
25 tsp 0.5208 cup
50 tsp 1.04 cup
75 tsp 1.56 cup
100 tsp 2.08 cup
250 tsp 5.21 cup
500 tsp 10.42 cup
1,000 tsp 20.83 cup
calculate Teaspoon to Cup Converter swap_horiz Cup to Teaspoon Converter functions Teaspoon to Cup Formula water_drop All Volume / Capacity Conversions

Frequently Asked Questions

20 teaspoons equals 0.4167 cups.
The formula is: tsp ÷ 48 = cup. See the tsp to cup formula page for worked examples.
Use the cups to teaspoons converter. The reverse formula is: cup × 48 = tsp.
The calculator uses the full-precision conversion factor for accuracy. Table values and displayed results are rounded for readability.
The conversion formula (tsp ÷ 48 = cup) is based on internationally defined standards. Displayed results are rounded for readability, while the calculator uses the full-precision factor.
person Written by Sean Day verified Reviewed by UnitCompare update Last updated Mar 28, 2026