A US teaspoon is one third of a US tablespoon.
Teaspoons to Picoliters Converter — tsp to pL
Convert Teaspoon (tsp) to Picoliter (pL) using the exact conversion factor (1 teaspoon = 4,928,921,594 picoliter). See the formula, worked examples, conversion table, and common uses.
Teaspoons to Picoliters converter
Converter
Volume Converter
Convert metric, US customary, imperial, cooking, dry, and industrial volume units.
Context values
Some unit families need one extra value for a physically accurate result.
Picoliter is 1e-12 liter units.
Result = input x 4.92892159e-6 / 1e-15.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Teaspoons to Picoliters
Teaspoon and Picoliter appear side by side at fuel pumps and on beverage labels, since the US measures liquids in gallons while most of the world uses liters. Teaspoon is most often used for us recipe and cooking measurement for small quantities.
Formula
picoliters = teaspoons × 4928921593.75
This factor comes from each unit's defined relationship to the category's base unit: 1 teaspoon equals 0.00000492892159375 base units, and 1 picoliter equals 1e-15 base units, so dividing one by the other gives the direct teaspoon-to-picoliter factor of 4928921593.75.
Simple example
1 tsp × 4928921594 = 4,928,921,594 pL
1 teaspoon = 4,928,921,594 picoliters.
Real-world example
10 tsp × 4928921594 = 49,289,215,940 pL
10 teaspoons = 49,289,215,940 picoliters.
Conversion table
| Teaspoon (tsp) | Picoliter (pL) |
|---|---|
| 1 tsp | 4,928,921,594 pL |
| 5 tsp | 24,644,607,970 pL |
| 10 tsp | 49,289,215,940 pL |
| 25 tsp | 123,223,039,800 pL |
| 50 tsp | 246,446,079,700 pL |
| 100 tsp | 492,892,159,400 pL |
Reverse conversion: Picoliter to Teaspoon
1 pL × 2.028841e-10 = 2.028841e-10 tsp
1 picoliter = 2.028841e-10 teaspoons.
teaspoons = picoliters × 2.028841e-10
For a page dedicated to this direction, see Picoliter to Teaspoon.
Understanding the Teaspoon
Teaspoon (tsp) measures volume. The US teaspoon is exactly 4.92892159375 milliliters — 1/3 of a US tablespoon and 1/48 of a US cup. It is classified as a US customary unit.
Where it's used: United States (cooking and recipe measurement)
Uses of the Teaspoon today
- US recipe and cooking measurement for small quantities
- Medication dosing instructions in the US
- Baking measurement alongside the tablespoon and cup
Understanding the Picoliter (pL)
Picoliter is 1e-12 liter units.
Teaspoon — sources
- NIST Handbook 44, Appendix C — General tables of units including the US teaspoon definition.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many picoliters are in 1 teaspoon?
1 teaspoon equals 4,928,921,594 picoliters, using the exact defined conversion factor rather than an estimate.
How do I convert teaspoon to picoliter?
Multiply the teaspoon value by 4928921594. The converter above does this instantly to whatever precision you set.
How do I convert picoliter back to teaspoon?
Use the reverse factor: 1 picoliter equals 2.028841e-10 teaspoons. You can also use the swap control in the converter above to flip the direction instantly.
What is a teaspoon?
Teaspoon (tsp) measures volume. The US teaspoon is exactly 4.92892159375 milliliters — 1/3 of a US tablespoon and 1/48 of a US cup. It is classified as a US customary unit.
What is a picoliter?
Picoliter (pL) is a unit of volume.
Is the teaspoon to picoliter conversion exact?
Yes. The US teaspoon is exactly 4.92892159375 milliliters — 1/3 of a US tablespoon and 1/48 of a US cup. That fixed definition is what the converter above uses, so any rounding you see is a display choice, not a limitation of the math.
Where is the teaspoon still used today?
United States (cooking and recipe measurement)