ConvertUnitOnline

US Teaspoon to Milliliter

Convert us teaspoon to milliliter instantly. Type in either field — results update live.

Instant Private Free

Volume US Teaspoon Milliliter

1 us teaspoon = 4.9289215938 milliliters

From

To

Format

Conversion table

Selected US tsp values converted to mL using the exact factor from this tool.

US tsp	mL
0.01	0.0492892159
0.1	0.4928921594
1	4.9289215938
2	9.8578431875
3	14.7867647813
5	24.6446079688
10	49.2892159375
20	98.578431875
50	246.4460796875
100	492.892159375
1,000	4,928.92159375

How to convert

Exact conversion factors in both directions, plus a worked example.

1 US tsp = 4.9289215938 mL

1 mL = 0.2028841362 US tsp

To convert us teaspoon to milliliter, multiply by 4.9289215938.

To convert milliliter to us teaspoon, multiply by 0.2028841362.

Example: convert 10 US tsp to mL

10 × 4.9289215938 = 49.2892159375 mL

About these units

Short background on the units used in this conversion.

US Teaspoon (US tsp)

The US teaspoon is 1/3 of a US tablespoon, or exactly 4.92892159375 milliliters.

US teaspoons measure extracts, yeast, salt, and other small ingredients in recipes.

Milliliter (mL)

A milliliter is one thousandth of a liter and exactly one cubic centimeter in the metric system.

Milliliters measure medicine doses, perfume, lab samples, and small recipe amounts worldwide.

Frequently asked questions

How many milliliters are in one us teaspoon?

One us teaspoon equals 4.9289215938 milliliters. Multiply your US teaspoons value by 4.9289215938 to convert to milliliters.

What is the conversion formula?

mL = US tsp × 4.9289215938

The reverse is US tsp = mL × 0.2028841362, using the same exact factors as this converter.

Is this US Teaspoon to Milliliter converter private?

Yes. All calculations run locally in your browser. Nothing you type is sent to a server.

All us teaspoon conversions

Jump to any volume conversion starting from us teaspoon — including the reverse direction and every other unit in our dataset.

milliliter (mL) → us teaspoon (US tsp)

us teaspoon (US tsp) → cubic meter (m³)us teaspoon (US tsp) → liter (L)us teaspoon (US tsp) → cc (cubic centimeter)us teaspoon (US tsp) → cubic centimeter (cm³)us teaspoon (US tsp) → cubic millimeter (mm³)us teaspoon (US tsp) → cubic kilometer (km³)us teaspoon (US tsp) → cubic decimeter (dm³)us teaspoon (US tsp) → kiloliter (kL)us teaspoon (US tsp) → megaliter (ML)us teaspoon (US tsp) → gigaliter (GL)us teaspoon (US tsp) → teraliter (TL)us teaspoon (US tsp) → petaliter (PL)us teaspoon (US tsp) → exaliter (EL)us teaspoon (US tsp) → hectoliter (hL)us teaspoon (US tsp) → decaliter (daL)us teaspoon (US tsp) → deciliter (dL)us teaspoon (US tsp) → centiliter (cL)us teaspoon (US tsp) → microliter (µL)us teaspoon (US tsp) → nanoliter (nL)us teaspoon (US tsp) → picoliter (pL)us teaspoon (US tsp) → femtoliter (fL)us teaspoon (US tsp) → attoliter (aL)us teaspoon (US tsp) → drop us teaspoon (US tsp) → cubic inch (in³)us teaspoon (US tsp) → cubic foot (ft³)us teaspoon (US tsp) → cubic yard (yd³)us teaspoon (US tsp) → us gallon (US gal)us teaspoon (US tsp) → us quart (US qt)us teaspoon (US tsp) → us pint (US pt)us teaspoon (US tsp) → us cup us teaspoon (US tsp) → us fluid ounce (US fl oz)us teaspoon (US tsp) → us tablespoon (US tbsp)us teaspoon (US tsp) → us dessertspoon (US dsp)us teaspoon (US tsp) → gill (us) (US gi)us teaspoon (US tsp) → minim (us) (US min)us teaspoon (US tsp) → barrel (us) (US bbl)us teaspoon (US tsp) → us barrel (dry) (US dry bbl)us teaspoon (US tsp) → barrel (oil) (bbl)us teaspoon (US tsp) → imperial gallon (uk) (UK gal)us teaspoon (US tsp) → imperial quart (uk) (UK qt)us teaspoon (US tsp) → imperial pint (uk) (UK pt)us teaspoon (US tsp) → cup (uk) (UK cup)us teaspoon (US tsp) → imperial fluid ounce (uk) (UK fl oz)us teaspoon (US tsp) → imperial tablespoon (uk) (UK tbsp)us teaspoon (US tsp) → imperial teaspoon (uk) (UK tsp)us teaspoon (US tsp) → dessertspoon (uk) (UK dsp)us teaspoon (US tsp) → gill (uk) (UK gi)us teaspoon (US tsp) → minim (uk) (UK min)us teaspoon (US tsp) → barrel (uk) (UK bbl)us teaspoon (US tsp) → cup (metric) (metric cup)us teaspoon (US tsp) → tablespoon (metric) (metric tbsp)us teaspoon (US tsp) → teaspoon (metric) (metric tsp)us teaspoon (US tsp) → ton register (ton reg)us teaspoon (US tsp) → ccf (hundred cubic feet)us teaspoon (US tsp) → hundred cubic foot (100 ft³)us teaspoon (US tsp) → cubic mile (mi³)us teaspoon (US tsp) → acre-foot (ac·ft)us teaspoon (US tsp) → acre-foot (us survey) (ac·ft surv)us teaspoon (US tsp) → acre-inch (ac·in)us teaspoon (US tsp) → dekastere us teaspoon (US tsp) → stere us teaspoon (US tsp) → decistere us teaspoon (US tsp) → cord us teaspoon (US tsp) → tun us teaspoon (US tsp) → hogshead us teaspoon (US tsp) → board foot (bd ft)us teaspoon (US tsp) → dram (fluid) (fl dr)us teaspoon (US tsp) → cor (biblical)us teaspoon (US tsp) → homer (biblical)us teaspoon (US tsp) → bath (biblical)us teaspoon (US tsp) → hin (biblical)us teaspoon (US tsp) → cab (biblical)us teaspoon (US tsp) → log (biblical)us teaspoon (US tsp) → taza (spanish)us teaspoon (US tsp) → earth's volume (V⊕)