Mass per volume density.
Nanograms per Gallon to Carats per Gallon Converter — ng/gal to ct/gal
Convert Nanogram per Gallon (ng/gal) to Carat per Gallon (ct/gal) using the exact conversion factor (1 nanogram per gallon = 5e-9 carat per gallon). See the formula, worked examples, and conversion table.
Nanograms per Gallon to Carats per Gallon 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 2.64172052e-10 / 0.05283441047.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Nanograms per Gallon to Carats per Gallon
Nanogram per Gallon and Carat per Gallon 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 gallon = nanograms per gallon × 5e-9
This factor comes from each unit's defined relationship to the category's base unit: 1 nanogram per gallon equals 2.641721e-10 base units, and 1 carat per gallon equals 0.0528344104716 base units, so dividing one by the other gives the direct nanogram per gallon-to-carat per gallon factor of 5e-9.
Simple example
1 ng/gal × 5e-9 = 5e-9 ct/gal
1 nanogram per gallon = 5e-9 carats per gallon.
Real-world example
1,000 ng/gal × 5e-9 = 0.000005 ct/gal
1,000 nanograms per gallon = 0.000005 carats per gallon.
Conversion table
| Nanogram per Gallon (ng/gal) | Carat per Gallon (ct/gal) |
|---|---|
| 0.1 ng/gal | 5e-10 ct/gal |
| 1 ng/gal | 5e-9 ct/gal |
| 10 ng/gal | 5e-8 ct/gal |
| 100 ng/gal | 5e-7 ct/gal |
| 1,000 ng/gal | 0.000005 ct/gal |
| 10,000 ng/gal | 0.00005 ct/gal |
Reverse conversion: Carat per Gallon to Nanogram per Gallon
5e-9 ct/gal × 200000000 = 1 ng/gal
5e-9 carats per gallon = 1 nanograms per gallon.
nanograms per gallon = carats per gallon × 200000000
For a page dedicated to this direction, see Carat per Gallon to Nanogram per Gallon.
Understanding the Nanogram per Gallon (ng/gal)
Mass per volume density.
Understanding the Carat per Gallon (ct/gal)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many carats per gallon are in 1 nanogram per gallon?
1 nanogram per gallon equals 5e-9 carats per gallon, using the exact defined conversion factor rather than an estimate.
How do I convert nanogram per gallon to carat per gallon?
Multiply the nanogram per gallon value by 5e-9. The converter above does this instantly to whatever precision you set.
How do I convert carat per gallon back to nanogram per gallon?
Use the reverse factor: 1 carat per gallon equals 200,000,000 nanograms per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a nanogram per gallon?
Nanogram per Gallon (ng/gal) is a unit of density.
What is a carat per gallon?
Carat per Gallon (ct/gal) is a unit of density.
Is the nanogram per gallon to carat per gallon conversion exact?
Yes. Both nanogram per gallon and carat per gallon are defined by fixed standards rather than physical artifacts, so the factor of 5e-9 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.