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US teaspoons → milliliters

1.50 US teaspoons to milliliters

7.39 mL

1.50 tsp = 7.39 mL.

milliliters

7.39mL

1.50 tsp = 7.39 mL

In short

How many milliliters is 1.50 US teaspoons?

1.50 tsp = 7.39 mL. 1 US teaspoon = 4.928922 milliliters, so the working is 1.50 × 4.928922 = 7.39.

The working

The factor below is an exact definition rather than a measurement, so nothing is approximated in the arithmetic. The only rounding on this page happens where a number is displayed.

1 US teaspoon = 4.928922 milliliters
1.50 × 4.928922 = 7.39

How much precision do you need?

Each row is the same answer cut at a different number of decimals, with what that choice costs you. Pick the shortest row whose error is smaller than whatever you are measuring with.

Rounded toAnswer (mL)Off by
Whole number7−0.39338
1 decimal7.4+0.00662
2 decimals7.39−0.00338

Round trip: take 7.39 mL back the other way and you land on 1.4993 tsp — a drift of 0.0007 tsp. That gap is the rounding, not the conversion.

Frequently asked questions

What is 1.50 US teaspoons in milliliters?

1.50 US teaspoons is 7.39 milliliters. 1 US teaspoon = 4.928922 milliliters, so the working is 1.50 × 4.928922 = 7.39.

How accurate is 7.39 mL?

Rounding to 7.39 mL and converting straight back gives 1.4993 tsp, a drift of 0.0007 tsp from the 1.50 you started with. The factor itself is exact; every bit of that difference comes from the rounding, not the conversion.

Nearby values

Any value at all

Teaspoons to Milliliters Converter

Convert US teaspoons to milliliters — and why a medicine spoon is 5 mL, not 4.93.

Open the teaspoons to milliliters converter