How do you convert teaspoons to milliliters?

To convert teaspoons to milliliters, multiply by 4.928921594. For example, 138 tsp is 680.19118 mL.

How many milliliters are in a teaspoon?

There are 4.928921594 milliliters in one teaspoon.

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Converters · Volume

138 Teaspoons to Milliliters

138 tsp =

680.19118 mL

138 teaspoons equals 680.19118 milliliters

How to convert teaspoons to milliliters

To get milliliters, multiply by 4.928921594.

mL = tsp × 4.928921594

Worked example: 138 × 4.928921594 = 680.19118 mL.

Going the other way, multiply by 0.2028841362 — one milliliter is 0.2028841362 teaspoons.

Values near 138 tsp

Teaspoon	Milliliter
69 tsp	340.09559 mL
136 tsp	670.333337 mL
137 tsp	675.262258 mL
139 tsp	685.120102 mL
140 tsp	690.049023 mL
276 tsp	1360.38236 mL

Teaspoon to Milliliter — common values

Teaspoon	Milliliter
1 tsp	4.928922 mL
2 tsp	9.857843 mL
3 tsp	14.786765 mL
5 tsp	24.644608 mL
10 tsp	49.289216 mL
25 tsp	123.22304 mL
50 tsp	246.44608 mL
100 tsp	492.892159 mL

Convert Teaspoon to other units

tsp → L tsp → mL tsp → m³ tsp → gal tsp → qt tsp → pt tsp → cup tsp → fl oz tsp → tbsp

← Reverse: Milliliter to Teaspoon

Questions

How do you convert teaspoons to milliliters?: To convert teaspoons to milliliters, multiply by 4.928921594. For example, 138 tsp is 680.19118 mL.
How many milliliters are in a teaspoon?: There are 4.928921594 milliliters in one teaspoon.
How do you convert milliliters back to teaspoons?: Go the other way: multiply by 0.2028841362. One milliliter is 0.2028841362 teaspoons.

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