Mass per volume density.
Picograms per Teaspoon to Carats per Teaspoon Converter — pg/tsp to ct/tsp
Convert Picogram per Teaspoon (pg/tsp) to Carat per Teaspoon (ct/tsp) using the exact conversion factor (1 picogram per teaspoon = 5e-12 carat per teaspoon). See the formula, worked examples, and conversion table.
Picograms per Teaspoon to Carats per Teaspoon converter
Converter
Density Converter
Convert thousands of mass-per-volume density combinations for science, engineering, agriculture, and fluids.
Context values
Some unit families need one extra value for a physically accurate result.
Mass per volume density.
Result = input x 2.02884136e-10 / 40.57682724.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Picograms per Teaspoon to Carats per Teaspoon
Picogram per Teaspoon and Carat per Teaspoon both measure density — mass per unit volume — a property used to identify materials, check manufacturing quality, and predict whether something floats or sinks. As a fixed reference point, water has a density of exactly 1000 kg/m³ (1 g/cm³, 1 g/mL) at its temperature of maximum density, which is why many density figures in science and engineering are quoted relative to water. Both are mass per volume density units.
Formula
carats per teaspoon = picograms per teaspoon × 5e-12
This factor comes from each unit's defined relationship to the category's base unit: 1 picogram per teaspoon equals 2.028841e-10 base units, and 1 carat per teaspoon equals 40.5768272422 base units, so dividing one by the other gives the direct picogram per teaspoon-to-carat per teaspoon factor of 5e-12.
Simple example
1 pg/tsp × 5e-12 = 5e-12 ct/tsp
1 picogram per teaspoon = 5e-12 carats per teaspoon.
Real-world example
1,000 pg/tsp × 5e-12 = 5e-9 ct/tsp
1,000 picograms per teaspoon = 5e-9 carats per teaspoon.
Conversion table
| Picogram per Teaspoon (pg/tsp) | Carat per Teaspoon (ct/tsp) |
|---|---|
| 0.1 pg/tsp | 5e-13 ct/tsp |
| 1 pg/tsp | 5e-12 ct/tsp |
| 10 pg/tsp | 5e-11 ct/tsp |
| 100 pg/tsp | 5e-10 ct/tsp |
| 1,000 pg/tsp | 5e-9 ct/tsp |
| 10,000 pg/tsp | 5e-8 ct/tsp |
Reverse conversion: Carat per Teaspoon to Picogram per Teaspoon
5e-12 ct/tsp × 200000000000 = 1 pg/tsp
5e-12 carats per teaspoon = 1 picograms per teaspoon.
picograms per teaspoon = carats per teaspoon × 200000000000
For a page dedicated to this direction, see Carat per Teaspoon to Picogram per Teaspoon.
Understanding the Picogram per Teaspoon (pg/tsp)
Mass per volume density.
Understanding the Carat per Teaspoon (ct/tsp)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many carats per teaspoon are in 1 picogram per teaspoon?
1 picogram per teaspoon equals 5e-12 carats per teaspoon, using the exact defined conversion factor rather than an estimate.
How do I convert picogram per teaspoon to carat per teaspoon?
Multiply the picogram per teaspoon value by 5e-12. The converter above does this instantly to whatever precision you set.
How do I convert carat per teaspoon back to picogram per teaspoon?
Use the reverse factor: 1 carat per teaspoon equals 200,000,000,000 picograms per teaspoon. You can also use the swap control in the converter above to flip the direction instantly.
What is a picogram per teaspoon?
Picogram per Teaspoon (pg/tsp) is a unit of density.
What is a carat per teaspoon?
Carat per Teaspoon (ct/tsp) is a unit of density.
Is the picogram per teaspoon to carat per teaspoon conversion exact?
Yes. Both picogram per teaspoon and carat per teaspoon are defined by fixed standards rather than physical artifacts, so the factor of 5e-12 used above is exact to as many digits as you choose to display.
What's the difference between density and mass concentration?
Density is the mass of a pure substance or material per unit volume. Mass concentration is the mass of one component — like a dissolved solute — within a mixture's total volume. The two use the same kind of units but describe different physical situations.