Convert Teaspoons to Milliliters
Instantly convert Teaspoons (tsp) to Milliliters (mL) with our free online calculator.
Formula: tsp to mL — multiply by 4.92892
Reference Table
| Teaspoons (tsp) | Milliliters (mL) |
|---|---|
| 1 | 4.92892 |
| 5 | 24.6446 |
| 10 | 49.2892 |
| 25 | 123.223 |
| 50 | 246.446 |
| 100 | 492.892 |
How to Convert Teaspoons to Milliliters
Formula
To convert Teaspoons (tsp) to Milliliters (mL): multiply by 4.92892
Step-by-Step
- Start with your value in Teaspoons (tsp).
- Multiply by 4.92892 to perform the conversion.
- The result is your value expressed in Milliliters (mL).
Conversion Factor
1 tsp = 4.92892 mL
Reverse Factor
1 mL = 0.202884 tsp
Worked Example
Convert 25 Teaspoons to Milliliters: 25 tsp = 123.223 mL
About Teaspoon (tsp)
A US culinary unit of volume equal to exactly 1/3 of a US tablespoon, or 1/48 of a US cup (≈ 4.92892 mL per NIST SP 811). Teaspoons are the smallest everyday US kitchen measurement: salt, pepper, ground spices, vanilla extract, almond extract, baking powder, baking soda, instant yeast, dry-mustard powder, and most powdered-spice quantities in published recipes. The pharmaceutical 'teaspoon' (used on OTC liquid-medication dosing labels and the AAP-recommended dosing-syringe scale) is rounded to exactly 5.00 mL for international consistency and dose-calculation simplicity — slightly larger than the kitchen teaspoon (4.93 mL) but the 1.4% difference is within label-precision tolerance. **Important**: same Australian-vs-rest-of-world distinction applies — Australian teaspoon is 5 mL per AS 1014, US/UK/Canadian teaspoon ≈ 4.93 mL. Recipes from Australia using tsp work out the same in practice. 1 tsp (US) = 1/3 tbsp ≈ 4.93 mL ≈ 1/6 fl oz.
About Milliliter (mL)
A metric unit of volume equal to exactly one thousandth of a litre (0.001 L) and exactly one cubic centimeter (1 mL ≡ 1 cm³ per BIPM). The mL is the universal small-volume unit in clinical medicine and pharmacy (USP / EP / JP / BP / IP pharmacopoeial dosing per ISO 13485 medical-device standards), laboratory chemistry (titration burettes, analytical glassware per ASTM E542), small-batch cooking outside the US, perfume and personal-care products (EU Cosmetic Regulation requires labelling in mL), and beverage packaging (a 500 mL water bottle, 750 mL wine, 700 mL standard spirits bottle in most of the world / 750 mL in US). Reference values: a typical Luer-lock medical syringe 1-60 mL, US shot glass ~44 mL (1.5 fl oz), standard saline IV bag 250-1,000 mL, espresso shot ~30 mL, retail vape juice 30/60/120 mL. In medical and laboratory contexts, mL and cc (cubic centimeters) are used interchangeably — both equal one cm³.
Quick Facts
- 1 Teaspoon equals 4.92892 Milliliters
- 1 Milliliter equals 0.202884 Teaspoons
- Teaspoon is a unit of volume
- Milliliter is a unit of volume
- This conversion is commonly used in cooking, chemistry, fluid mechanics, and everyday liquid measurement
- The Teaspoon belongs to the imperial system
- The Milliliter belongs to the metric system
Common Teaspoon to Milliliter Conversions
| Teaspoons (tsp) | Milliliters (mL) |
|---|---|
| 0.01 | 0.0492892 |
| 0.1 | 0.492892 |
| 0.25 | 1.23223 |
| 0.5 | 2.46446 |
| 1 | 4.92892 |
| 2 | 9.85784 |
| 3 | 14.7868 |
| 5 | 24.6446 |
| 10 | 49.2892 |
| 15 | 73.9338 |
| 20 | 98.5784 |
| 25 | 123.223 |
| 50 | 246.446 |
| 75 | 369.669 |
| 100 | 492.892 |
| 250 | 1232.23 |
| 500 | 2464.46 |
| 1000 | 4928.92 |
| 5000 | 24644.6 |
| 10000 | 49289.2 |
Understanding Teaspoons
The Teaspoon (symbol: tsp) is a unit of volume. A US culinary unit of volume equal to exactly 1/3 of a US tablespoon, or 1/48 of a US cup (≈ 4.92892 mL per NIST SP 811). Teaspoons are the smallest everyday US kitchen measurement: salt, pepper, ground spices, vanilla extract, almond extract, baking powder, baking soda, instant yeast, dry-mustard powder, and most powdered-spice quantities in published recipes. The pharmaceutical 'teaspoon' (used on OTC liquid-medication dosing labels and the AAP-recommended dosing-syringe scale) is rounded to exactly 5.00 mL for international consistency and dose-calculation simplicity — slightly larger than the kitchen teaspoon (4.93 mL) but the 1.4% difference is within label-precision tolerance. **Important**: same Australian-vs-rest-of-world distinction applies — Australian teaspoon is 5 mL per AS 1014, US/UK/Canadian teaspoon ≈ 4.93 mL. Recipes from Australia using tsp work out the same in practice. 1 tsp (US) = 1/3 tbsp ≈ 4.93 mL ≈ 1/6 fl oz.
It belongs to the imperial measurement system.
Teaspoons are commonly used in cooking, chemistry, fluid mechanics, and everyday liquid measurement.
Understanding Milliliters
The Milliliter (symbol: mL) is a unit of volume. A metric unit of volume equal to exactly one thousandth of a litre (0.001 L) and exactly one cubic centimeter (1 mL ≡ 1 cm³ per BIPM). The mL is the universal small-volume unit in clinical medicine and pharmacy (USP / EP / JP / BP / IP pharmacopoeial dosing per ISO 13485 medical-device standards), laboratory chemistry (titration burettes, analytical glassware per ASTM E542), small-batch cooking outside the US, perfume and personal-care products (EU Cosmetic Regulation requires labelling in mL), and beverage packaging (a 500 mL water bottle, 750 mL wine, 700 mL standard spirits bottle in most of the world / 750 mL in US). Reference values: a typical Luer-lock medical syringe 1-60 mL, US shot glass ~44 mL (1.5 fl oz), standard saline IV bag 250-1,000 mL, espresso shot ~30 mL, retail vape juice 30/60/120 mL. In medical and laboratory contexts, mL and cc (cubic centimeters) are used interchangeably — both equal one cm³.
It belongs to the metric measurement system.
Milliliters are commonly used in cooking, chemistry, fluid mechanics, and everyday liquid measurement.
Why Convert Teaspoons to Milliliters?
Volume conversions between Teaspoons and Milliliters are essential in cooking, chemistry, and fluid mechanics. Recipes from different countries use different measurement systems, laboratory procedures reference varying units, and engineers designing fluid systems need precise volume calculations for pipes, tanks, and pumps.
Frequently Asked Questions
How do I convert Teaspoons to Milliliters?
A US culinary unit of volume equal to exactly 1/3 of a US tablespoon, or 1/48 of a US cup (≈ 4. To convert Teaspoons to Milliliters, multiply by 4.92892. For example, 25 tsp equals 123.223 mL.
How many Milliliters are in 1 Teaspoon?
There are 4.92892 Milliliters in 1 Teaspoon.
How many Teaspoons are in 1 Milliliter?
There are 0.202884 Teaspoons in 1 Milliliter.
What is the formula for Teaspoon to Milliliter conversion?
The formula is: multiply by 4.92892. This means 1 tsp = 4.92892 mL.
Is a Teaspoon bigger than a Milliliter?
No. One Teaspoon is smaller than one Milliliter because 1 tsp equals 4.92892 mL, which is greater than 1.
When do you need to convert between Teaspoons and Milliliters?
A metric unit of volume equal to exactly one thousandth of a litre (0. Teaspoon and Milliliter are both volume units, so conversion comes up whenever one source of information uses one unit and another uses the other — a classic cross-reference challenge in engineering, trade, travel, and everyday life.