Convert US Teaspoon to Microlitre
1 us teaspoon = 4,928.922 microlitre (µL). For example, 10 us teaspoon = 49,289.22 microlitre and 100 us teaspoon = 492,892.2 microlitre. Type any value below to convert us teaspoon to microlitre both ways — it runs entirely in your browser.
Quick answer: US Teaspoon to Microlitre
1 US Teaspoon = 4,928.922 Microlitre (tsp → µL). To convert us teaspoon to microlitre, multiply by 4,928.922. To convert microlitre to us teaspoon, multiply by 0.0002028841. The converter at the top does this instantly and both ways; the sections below give the formula, worked examples, a full conversion chart and answers to the most common us teaspoon-to-microlitre questions.
How to convert US Teaspoon to Microlitre
To convert us teaspoon to microlitre, multiply the number of us teaspoon by the conversion factor 4,928.922, because 1 tsp = 4,928.922 µL. The conversion is linear, so the same factor works for any value — whole numbers, decimals or fractions. For the reverse direction, 1 µL = 0.0002028841 tsp, so you divide by 4,928.922 (or multiply by 0.0002028841) to turn microlitre back into us teaspoon.
µL = tsp × 4,928.922 ·
tsp = µL × 0.0002028841
- Write down the value you want to convert, in us teaspoon.
- Multiply it by 4,928.922.
- The result is the same area/length/quantity expressed in microlitre.
US Teaspoon to Microlitre — worked examples
Each row shows the exact arithmetic so you can follow the conversion step by step. For example, 5 us teaspoon is 24,644.61 microlitre because 5 tsp × 4,928.922 = 24,644.61 µL.
| US Teaspoon | Calculation | Microlitre |
|---|---|---|
| 1 tsp | 1 tsp × 4,928.922 = 4,928.922 µL | 4,928.922 µL |
| 2 tsp | 2 tsp × 4,928.922 = 9,857.843 µL | 9,857.843 µL |
| 3 tsp | 3 tsp × 4,928.922 = 14,786.76 µL | 14,786.76 µL |
| 5 tsp | 5 tsp × 4,928.922 = 24,644.61 µL | 24,644.61 µL |
| 7 tsp | 7 tsp × 4,928.922 = 34,502.45 µL | 34,502.45 µL |
| 10 tsp | 10 tsp × 4,928.922 = 49,289.22 µL | 49,289.22 µL |
| 12 tsp | 12 tsp × 4,928.922 = 59,147.06 µL | 59,147.06 µL |
| 15 tsp | 15 tsp × 4,928.922 = 73,933.82 µL | 73,933.82 µL |
| 20 tsp | 20 tsp × 4,928.922 = 98,578.43 µL | 98,578.43 µL |
| 25 tsp | 25 tsp × 4,928.922 = 123,223 µL | 123,223 µL |
| 50 tsp | 50 tsp × 4,928.922 = 246,446.1 µL | 246,446.1 µL |
| 100 tsp | 100 tsp × 4,928.922 = 492,892.2 µL | 492,892.2 µL |
Common US Teaspoon to Microlitre conversions
These are the us teaspoon-to-microlitre values people look up most often. Every figure is computed from the exact factor, so you can rely on them for quick reference:
- 1 us teaspoon = 4,928.922 microlitre
- 2 us teaspoon = 9,857.843 microlitre
- 2.5 us teaspoon = 12,322.3 microlitre
- 3 us teaspoon = 14,786.76 microlitre
- 4 us teaspoon = 19,715.69 microlitre
- 5 us teaspoon = 24,644.61 microlitre
- 6 us teaspoon = 29,573.53 microlitre
- 7 us teaspoon = 34,502.45 microlitre
- 8 us teaspoon = 39,431.37 microlitre
- 9 us teaspoon = 44,360.29 microlitre
- 10 us teaspoon = 49,289.22 microlitre
- 12 us teaspoon = 59,147.06 microlitre
- 15 us teaspoon = 73,933.82 microlitre
- 20 us teaspoon = 98,578.43 microlitre
- 25 us teaspoon = 123,223 microlitre
- 30 us teaspoon = 147,867.6 microlitre
- 50 us teaspoon = 246,446.1 microlitre
- 75 us teaspoon = 369,669.1 microlitre
- 100 us teaspoon = 492,892.2 microlitre
- 200 us teaspoon = 985,784.3 microlitre
- 500 us teaspoon = 2,464,461 microlitre
- 1000 us teaspoon = 4,928,922 microlitre
US Teaspoon to Microlitre conversion chart (both directions)
The chart below converts us teaspoon to microlitre and microlitre to us teaspoon side by side, so it works whichever way you need. 1 us teaspoon = 4,928.922 microlitre, and 1 microlitre = 0.0002028841 us teaspoon.
| US Teaspoon → Microlitre | Microlitre → US Teaspoon |
|---|---|
| 0.25 tsp = 1,232.23 µL | 0.25 µL = 0.00005072103 tsp |
| 0.5 tsp = 2,464.461 µL | 0.5 µL = 0.0001014421 tsp |
| 1 tsp = 4,928.922 µL | 1 µL = 0.0002028841 tsp |
| 2 tsp = 9,857.843 µL | 2 µL = 0.0004057683 tsp |
| 3 tsp = 14,786.76 µL | 3 µL = 0.0006086524 tsp |
| 4 tsp = 19,715.69 µL | 4 µL = 0.0008115365 tsp |
| 5 tsp = 24,644.61 µL | 5 µL = 0.001014421 tsp |
| 6 tsp = 29,573.53 µL | 6 µL = 0.001217305 tsp |
| 7 tsp = 34,502.45 µL | 7 µL = 0.001420189 tsp |
| 8 tsp = 39,431.37 µL | 8 µL = 0.001623073 tsp |
| 9 tsp = 44,360.29 µL | 9 µL = 0.001825957 tsp |
| 10 tsp = 49,289.22 µL | 10 µL = 0.002028841 tsp |
| 12 tsp = 59,147.06 µL | 12 µL = 0.00243461 tsp |
| 15 tsp = 73,933.82 µL | 15 µL = 0.003043262 tsp |
| 20 tsp = 98,578.43 µL | 20 µL = 0.004057683 tsp |
| 25 tsp = 123,223 µL | 25 µL = 0.005072103 tsp |
| 30 tsp = 147,867.6 µL | 30 µL = 0.006086524 tsp |
| 40 tsp = 197,156.9 µL | 40 µL = 0.008115365 tsp |
| 50 tsp = 246,446.1 µL | 50 µL = 0.01014421 tsp |
| 75 tsp = 369,669.1 µL | 75 µL = 0.01521631 tsp |
| 100 tsp = 492,892.2 µL | 100 µL = 0.02028841 tsp |
| 150 tsp = 739,338.2 µL | 150 µL = 0.03043262 tsp |
| 200 tsp = 985,784.3 µL | 200 µL = 0.04057683 tsp |
| 250 tsp = 1,232,230 µL | 250 µL = 0.05072103 tsp |
| 500 tsp = 2,464,461 µL | 500 µL = 0.1014421 tsp |
| 1000 tsp = 4,928,922 µL | 1000 µL = 0.2028841 tsp |
US Teaspoon vs Microlitre: which is bigger?
A us teaspoon is the larger unit: one us teaspoon equals 4,928.922 microlitres. Put another way, you need 4,928.922 microlitres to make a single us teaspoon.
What is a US Teaspoon? History, origin and usage
The teaspoon began as the small spoon used to stir tea, which arrived in England in the 1600s, and its size grew as tea became cheaper and teacups larger through the early 1700s. It was eventually standardised at one third of a tablespoon, the proportion still used in the US customary system.
The teaspoon is the standard small measure for baking powder, salt, vanilla, spices and other potent ingredients in cooking. It is also a familiar dose marker for liquid medicines, though health authorities prefer proper millilitre measuring for medication.
A US teaspoon is one sixth of a fluid ounce and one third of a tablespoon, a tidy ratio that makes scaling recipes easy. Using an ordinary tea-drinking spoon instead of a measuring teaspoon is a common source of inaccurate baking.
What is a Microlitre? History, origin and usage
The microlitre applies the SI prefix micro- (from Greek mikros, small) to the litre, making it one millionth of a litre, and it became standard vocabulary as the SI prefixes were formalised in the 20th century. It is a creature of the laboratory rather than the kitchen or marketplace.
The microlitre is the everyday unit of modern molecular biology, analytical chemistry and clinical labs, where micropipettes dispense tiny, precise volumes for tests such as PCR, DNA sequencing and blood assays. Drug discovery and diagnostics depend on accurate microlitre handling.
A microlitre is one thousandth of a millilitre, a volume far too small to measure with ordinary kitchen tools. Adjustable micropipettes that deliver microlitre amounts are among the most-used instruments in biology and chemistry research.
Convert 1 US Teaspoon to other units
It can help to see a us teaspoon next to the other units it is commonly compared with. One us teaspoon (tsp) is equal to:
| 1 US Teaspoon equals | Unit |
|---|---|
| 4.928922 mL | Millilitre |
| 0.4928922 cL | Centilitre |
| 0.004928922 L | Litre |
| 0.000004928922 m³ | Cubic Metre |
| 4.928922 cm³ | Cubic Centimetre |
| 0.3007813 in³ | Cubic Inch |
| 0.0001740632 ft³ | Cubic Foot |
| 0.001302083 US gal | US Gallon |
| 0.001302083 gal | US Gallon |
| 0.005208333 US qt | US Quart |
| 0.005208333 qt | US Quart |
| 0.01041667 US pt | US Pint |
| 0.01041667 pt | US Pint |
| 0.1666667 US fl oz | US Fluid Ounce |
| 0.1666667 fl oz | US Fluid Ounce |
| 0.1734738 imp fl oz | Imperial Fluid Ounce |
| 0.3333333 tbsp | US Tablespoon |
| 0.04166667 gi | US Gill |
| 0.0001398709 bu | US Bushel |
| 0.00003100198 bbl | Oil Barrel |
| 4,928.922 µL | Microlitre |
| 0.02083333 US cup | US Cup |
| 0.1666667 US fl oz | US Fluid Ounce |
Convert 1 Microlitre to other units
One microlitre (µL) is equal to:
| 1 Microlitre equals | Unit |
|---|---|
| 0.001 mL | Millilitre |
| 0.0001 cL | Centilitre |
| 0.000001 L | Litre |
| 0.000000001 m³ | Cubic Metre |
| 0.001 cm³ | Cubic Centimetre |
| 0.00006102374 in³ | Cubic Inch |
| 0.00000003531467 ft³ | Cubic Foot |
| 0.0000002641721 US gal | US Gallon |
| 0.0000002641721 gal | US Gallon |
| 0.000001056688 US qt | US Quart |
| 0.000001056688 qt | US Quart |
| 0.000002113376 US pt | US Pint |
| 0.000002113376 pt | US Pint |
| 0.00003381402 US fl oz | US Fluid Ounce |
| 0.00003381402 fl oz | US Fluid Ounce |
| 0.00003519508 imp fl oz | Imperial Fluid Ounce |
| 0.00006762805 tbsp | US Tablespoon |
| 0.0002028841 tsp | US Teaspoon |
| 0.000008453506 gi | US Gill |
| 0.00000002837759 bu | US Bushel |
| 0.000000006289811 bbl | Oil Barrel |
| 0.000004226753 US cup | US Cup |
| 0.00003381402 US fl oz | US Fluid Ounce |
Tips for converting US Teaspoon to Microlitre
- To go from us teaspoon to microlitre, multiply by 4,928.922; to go back, divide by 4,928.922 (or multiply by 0.0002028841).
- For a quick mental estimate, remember that 1 us teaspoon ≈ 4,928.922 microlitre, so 10 us teaspoon ≈ 49,289.22 microlitre.
- The converter above keeps full precision; the tables round for readability, so use the tool for exact figures.
- Both fields update live as you type — change either side to convert in that direction.
How to use this US Teaspoon to Microlitre converter
Type a number into the US Teaspoon field and the equivalent in Microlitre appears instantly — there is no “convert” button to press and nothing is sent to a server, so it works offline once the page has loaded and is safe for any data. You can also type into the Microlitre field to convert the other way (microlitre to us teaspoon). Use the swap control to flip the two units, and copy the result with a single click. Because the calculation runs in your browser with full floating-point precision, the converter is more exact than the rounded figures shown in the reference chart above — use the chart for quick look-ups and the tool for precise work.
Accuracy and method
Every figure on this page — the formula, the worked examples, the conversion chart and the “convert to other units” tables — is computed from a single verified conversion factor (1 tsp = 4,928.922 µL), never copied from a hand-typed lookup table that could drift. That factor is derived from each unit’s definition in terms of a common base unit, and an automated check re-verifies all of the site’s factors on every update, so the numbers here stay correct over time. This matters for us teaspoon-to-microlitre conversions because a small rounding error in a published table compounds quickly at larger quantities; computing from the exact factor avoids that.
Sources
- NIST Special Publication 811 — Guide for the Use of the SI — publishes the exact metric equivalents of the customary units. The inch, foot, yard and mile are defined exactly in metres by the 1959 international yard-and-pound agreement, so every imperial figure on this page is exact, not rounded.
- BIPM — The International System of Units (SI Brochure) — the defining document for the SI, published by the International Bureau of Weights and Measures. It fixes the base unit that this conversion resolves to, which is why the factor here can be exact rather than approximate.
Watch the system: a <strong>US</strong> gallon, quart, pint and fluid ounce are <strong>not</strong> the same size as the <strong>imperial (UK)</strong> ones — a US gallon is 3.785 L while an imperial gallon is 4.546 L, and a US fluid ounce (29.57 mL) is slightly larger than an imperial fluid ounce (28.41 mL). The units on this page are labelled US or Imperial so the result is unambiguous.
Frequently asked questions
- How many microlitre are in 1 us teaspoon?
- 1 us teaspoon = 4,928.922 microlitre (µL). To convert any number of us teaspoon to microlitre, multiply by 4,928.922.
- How do I convert us teaspoon to microlitre?
- Multiply the number of us teaspoon by 4,928.922. For example, 10 us teaspoon = 10 × 4,928.922 = 49,289.22 microlitre, and 25 us teaspoon = 123,223 microlitre.
- How many us teaspoon are in 1 microlitre?
- 1 microlitre = 0.0002028841 us teaspoon. So to convert microlitre back to us teaspoon, multiply by 0.0002028841.
- What is the formula to convert us teaspoon to microlitre?
- microlitre = us teaspoon × 4,928.922. The reverse formula is us teaspoon = microlitre × 0.0002028841.
- How much is 100 us teaspoon in microlitre?
- 100 us teaspoon = 492,892.2 microlitre. (And 1000 us teaspoon = 4,928,922 microlitre.)
- Which is bigger, a us teaspoon or a microlitre?
- A us teaspoon is larger: 1 us teaspoon = 4,928.922 microlitre.
- Is this us teaspoon to microlitre converter accurate?
- Yes — every value is computed from the exact 4,928.922 µL per tsp factor (not rounded look-up tables), and the factors are re-verified automatically on every update.
- Can I convert microlitre to us teaspoon too?
- Yes. The converter works both ways — enter a value in either field. 1 microlitre = 0.0002028841 us teaspoon.