Online calculator to convert US teaspoons to milliliters (US tsp to mL) with formulas, examples, and tables. Our conversions provide a quick and easy way to convert between Volume units.
Conversion Calculator
Enter your value in the conversion calculator below.
Convert US tsp to mL
TIP: If the result of your conversion is 0, try increasing the "Decimals".
Conversion Definitions
The following is a list of definitions relating to conversions between US teaspoons and milliliters.
What is a US teaspoon (US tsp)?
A US teaspoon is a unit of volume in US Customary Units. The symbol for US teaspoon is US tsp. There are 0.20288414 US teaspoon in a milliliter.
What is a milliliter (mL)?
A milliliter is a unit of volume in the Metric System. The symbol for milliliter is mL. There are 4.92892159375 milliliters in a US teaspoon. The International spelling for this unit is millilitre.
Conversion Formula
Let's take a closer look at the conversion formula so that you can do these conversions yourself with a calculator or with an old-fashioned pencil and paper.
The formula to convert from US tsp to mL is:
mL = US tsp x 4.92892159375
Conversion Example
Next, let's look at an example showing the work and calculations that are involved in converting from US teaspoons to milliliters (US tsp to mL).
US Teaspoon to Milliliter Conversion Example
Task: Convert 75 US teaspoons to milliliters (show work) Formula: US tsp x 4.92892159375 = mL Calculations: 75 US tsp x 4.92892159375 = 369.66911953 mL Result: 75 US tsp is equal to 369.66911953 mL
Conversion Table
For quick reference purposes, below is a conversion table that you can use to convert from US tsp to mL.
US Teaspoons to Milliliters Conversion Chart
| US teaspoons (US tsp) | milliliters (mL) |
|---|---|
| 1 US tsp | 4.92892159 mL |
| 2 US tsp | 9.85784319 mL |
| 3 US tsp | 14.78676478 mL |
| 4 US tsp | 19.71568638 mL |
| 5 US tsp | 24.64460797 mL |
| 6 US tsp | 29.57352956 mL |
| 7 US tsp | 34.50245116 mL |
| 8 US tsp | 39.43137275 mL |
| 9 US tsp | 44.36029434 mL |
| 10 US tsp | 49.28921594 mL |
| 20 US tsp | 98.57843188 mL |
| 30 US tsp | 147.86764781 mL |
| 40 US tsp | 197.15686375 mL |
| 50 US tsp | 246.44607969 mL |
| 75 US tsp | 369.66911953 mL |
| 100 US tsp | 492.89215938 mL |
| 250 US tsp | 1,232.23039844 mL |
| 500 US tsp | 2,464.46079688 mL |
| 750 US tsp | 3,696.69119531 mL |
| 1,000 US tsp | 4,928.92159375 mL |
| 2,500 US tsp | 12,322.30398438 mL |
| 5,000 US tsp | 24,644.60796875 mL |
| 7,500 US tsp | 36,966.91195313 mL |
| 10,000 US tsp | 49,289.2159375 mL |
| 25,000 US tsp | 123,223.03984375 mL |
| 50,000 US tsp | 246,446.0796875 mL |
| 75,000 US tsp | 369,669.11953125 mL |
| 100,000 US tsp | 492,892.159375 mL |
| 250,000 US tsp | 1,232,230.3984375 mL |
Related Units
The following tables provide a summary of the Volume units (both Fluid Volume units and Cubic Volume units) within their respective measurement systems.
Fluid Volume Units
| Unit | Symbol | Measurement System |
|---|---|---|
| US teaspoons | US tsp | US Customary Units |
| US tablespoons | US tbsp | US Customary Units |
| US fluid ounces | US fl oz | US Customary Units |
| US cups | US cup | US Customary Units |
| US pints | US pt | US Customary Units |
| US quarts | US qt | US Customary Units |
| US gallons | US gal | US Customary Units |
| Imperial teaspoons | Imperial tsp | Imperial System |
| Imperial tablespoons | Imperial tbsp | Imperial System |
| Imperial fluid ounces | Imperial fl oz | Imperial System |
| Imperial pints | Imperial pt | Imperial System |
| Imperial quarts | Imperial qt | Imperial System |
| Imperial gallons | Imperial gal | Imperial System |
| nanoliters | nL | Metric System |
| microliters | μL | Metric System |
| milliliters | mL | Metric System |
| centiliters | cL | Metric System |
| deciliters | dL | Metric System |
| liters | L | Metric System |
| decaliters | daL | Metric System |
| hectoliters | hL | Metric System |
| kiloliters | kL | Metric System |
| megaliters | ML | Metric System |
Note: There is a difference between US Customary Units and the Imperial System for volume conversions. The US gallon contains 128 US fluid ounces, whereas the Imperial gallon contains 160 Imperial fluid ounces.
Cubic Volume Units
| Unit | Symbol | Measurement System |
|---|---|---|
| cubic inches | in3 | US Customary Units/Imperial System |
| cubic feet | ft3 | US Customary Units/Imperial System |
| cubic yards | yd3 | US Customary Units/Imperial System |
| cubic miles | mi3 | US Customary Units/Imperial System |
| cubic millimeters | mm3 | Metric System |
| cubic centimeters | cm3 | Metric System |
| cubic decimeters | dm3 | Metric System |
| cubic meters | m3 | Metric System |
| cubic decameter | dam3 | Metric System |
| cubic kilometer | km3 | Metric System |
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