swap_horiz Need milliliters to teaspoons instead?

15 Teaspoons to Milliliters

15 teaspoons equals 73.93 milliliters. Use the formula, worked example, and conversion table below to check the math.

15 tsp = 73.93 mL
tsp × 4.928922 = mL
Try: 10 tsp to mL 14 tsp to mL 16 tsp to mL 20 tsp to mL
15 tsp is also
15 tsp = 0.0739 L 15 tsp = 0.0195 gal 15 tsp = 0.3125 cup 15 tsp = 2.5 fl oz 15 tsp = 0.1563 pt 15 tsp = 0.0781 qt 15 tsp = 5 tbsp
tsp
73.93 mL

Formula and Step-by-Step

tsp × 4.928922 = mL
  1. Start with 15 tsp
  2. Multiply by 4.928922: 15 × 4.928922 = 73.93
  3. Result: 15 tsp = 73.93 mL

Since 1 teaspoon equals 4.928922 milliliters, multiply any teaspoon value by 4.928922 to convert.

Other Teaspoon to Milliliter Values

Teaspoons (tsp) Milliliters (mL)
1 tsp 4.93 mL
2 tsp 9.86 mL
5 tsp 24.64 mL
10 tsp 49.29 mL
15 tsp 73.93 mL
20 tsp 98.58 mL
25 tsp 123.22 mL
50 tsp 246.45 mL
75 tsp 369.67 mL
100 tsp 492.89 mL
250 tsp 1,232.23 mL
500 tsp 2,464.46 mL
1,000 tsp 4,928.92 mL
calculate Teaspoon to Milliliter Converter swap_horiz Milliliter to Teaspoon Converter functions Teaspoon to Milliliter Formula water_drop All Volume / Capacity Conversions

Frequently Asked Questions

15 teaspoons equals 73.93 milliliters.
The formula is: tsp × 4.928922 = mL. See the tsp to mL formula page for worked examples.
Use the milliliters to teaspoons converter. The reverse formula is: mL × 0.202884 = tsp.
The calculator uses the full-precision conversion factor for accuracy. Table values and displayed results are rounded for readability.
The conversion formula (tsp × 4.928922 = mL) 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