Volume

Convert teaspoons to ml

1 us teaspoon equals 4.9289216 milliliters. Enter a value below to convert instantly.

1 tsp (US)
4.9289216 mL

Multiply the number of us teaspoons by 4.92892159375 to get milliliters. How this is calculated

Copy link puts your number after the #, which browsers never send to a server — but the link itself carries it, so anyone you send it to sees the value. Save keeps the unit pair in this browser only; clear it any time from your saved list.

Need the other direction? Convert milliliter to us teaspoon →

Formula

Multiply the number of us teaspoons by 4.92892159375 to get milliliters.

Step by step

  1. Start with 1 tsp (US).
  2. Multiply by the conversion factor 4.92892159375.
  3. 1 × 4.92892159375 = 4.9289216 mL.

US Teaspoons to Milliliters conversion table

Conversion table from US Teaspoons to Milliliters
US Teaspoons (tsp (US)) Milliliters (mL)
1 4.9289216
2 9.8578432
3 14.786765
5 24.644608
10 49.289216
20 98.578432
50 246.44608
100 492.89216
500 2,464.4608
1,000 4,928.9216

Convert US Teaspoon to other volume units

1 tsp (US) expressed in every other volume unit on this site.

  • Liter L 0.0049289216
  • Milliliter mL 4.9289216
  • Centiliter cL 0.49289216
  • Deciliter dL 0.049289216
  • Dekaliter daL 0.00049289216
  • Hectoliter hL 0.000049289216
  • Kiloliter kL 0.0000049289216
  • Microliter µL 4,928.9216
  • Nanoliter nL 4,928,921.6
  • Picoliter pL 4,928,921,600
  • Femtoliter fL 4,928,921,600,000
  • Attoliter aL 4.9289216e+15
  • Megaliter ML 4.9289216e-9
  • Gigaliter GL 4.9289216e-12
  • Petaliter PL 4.9289216e-18
  • Exaliter EL 4.9289216e-21
  • Dekastere dast 4.9289216e-7
  • Metric Cup cup (metric) 0.019715686
  • Metric Tablespoon tbsp (metric) 0.32859477
  • Metric Teaspoon tsp (metric) 0.98578432
  • Cubic Meter 0.0000049289216
  • Cubic Kilometer km³ 4.9289216e-15
  • Cubic Centimeter cm³ 4.9289216
  • Cubic Millimeter mm³ 4,928.9216
  • Drop gtt 98.578432
  • Cubic Mile mi³ 1.1825112e-12
  • Cubic Yard yd³ 0.0000064467861
  • Cubic Foot ft³ 0.00017406322
  • Cubic Inch in³ 0.30078125
  • Hundred Cubic Feet ccf 0.0000017406322
  • Ton Register RT 0.0000017406322
  • Acre-foot ac·ft 3.9959418e-9
  • Acre-inch ac·in 4.7951301e-8
  • Cord cord 0.0000013598689
  • Cord Foot cord ft 0.000010878951
  • Board Foot bf 0.0020887587
  • US Gallon gal (US) 0.0013020833
  • US Quart qt (US) 0.0052083333
  • US Pint pt (US) 0.010416667
  • US Cup cup (US) 0.020833333
  • US Gill gi (US) 0.041666667
  • US Fluid Ounce fl oz (US) 0.16666667
  • US Tablespoon tbsp (US) 0.33333333
  • US Dessertspoon dstspn (US) 0.5
  • US Fluid Dram fl dr (US) 1.3333333
  • US Minim min (US) 80
  • US Barrel (oil) bbl (oil) 0.000031001984
  • US Barrel (liquid) bbl (liq) 0.000041335979
  • US Barrel (federal, beer) bbl (beer) 0.000042002688
  • US Hogshead hhd (US) 0.000020667989
  • Tun tun 0.0000051669974
  • US Bushel bu (US) 0.00013987093
  • US Peck pk (US) 0.00055948373
  • US Dry Gallon gal (US dry) 0.0011189675
  • US Dry Quart qt (US dry) 0.0044758698
  • US Dry Pint pt (US dry) 0.0089517397
  • US Barrel (dry) bbl (dry) 0.000042627728
  • Imperial Gallon gal (UK) 0.0010842112
  • Imperial Quart qt (UK) 0.0043368447
  • Imperial Pint pt (UK) 0.0086736894
  • Imperial Cup cup (UK) 0.017347379
  • Imperial Gill gi (UK) 0.034694758
  • Imperial Fluid Ounce fl oz (UK) 0.17347379
  • Imperial Tablespoon tbsp (UK) 0.27755806
  • Imperial Teaspoon tsp (UK) 0.83267418
  • Imperial Fluid Dram fl dr (UK) 1.3877903
  • Imperial Minim min (UK) 83.267418
  • Imperial Bushel bu (UK) 0.0001355264
  • Imperial Peck pk (UK) 0.00054210559
  • Imperial Dessertspoon dstspn (UK) 0.41633709
  • Imperial Barrel bbl (UK) 0.000030116977
  • Acre-foot (US survey) ac·ft (US) 3.9959178e-9
  • Cor (Biblical) cor 0.000022404189
  • Homer (Biblical) homer 0.000022404189
  • Bath (Biblical) bath 0.00022404189
  • Hin (Biblical) hin 0.0013442513
  • Cab (Biblical) cab 0.004032754
  • Log (Biblical) log 0.016131016
  • Doe 0.0027323593
  • Hop 0.027323593
  • Jak 0.27323593
  • Mal 0.00027323593
  • Seom 0.000027323593
  • Earth's Volume V⊕ 4.5511741e-27

About the us teaspoon

The us teaspoon (tsp (US)) is a US unit of volume.

About the milliliter

The milliliter (mL) is a Metric unit of volume.

Where this conversion is used

Converting us teaspoons to milliliters comes up when cooking recipes, fuel, beverages, and container capacity. US and Imperial liquid measures differ, so a US cup or gallon is not the same size as its UK counterpart.

Related conversions

Frequently asked questions

How many milliliters are in a us teaspoon?

One us teaspoon equals 4.9289216 milliliters.

How do you convert us teaspoons to milliliters?

Multiply the number of us teaspoons by 4.92892159375 to get milliliters.

What is 1 milliliter in us teaspoons?

One milliliter equals 0.20288414 us teaspoons.

When would I convert us teaspoons to milliliters?

This conversion is common when cooking recipes, fuel, beverages, and container capacity.

Conversion factors are based on internationally agreed unit definitions. See our methodology and sources for details on how these values are verified.