Mass concentration.
Grams per Gallon to Kilograms per Milliliter Converter — g/gal to kg/mL
Convert Gram per Gallon (g/gal) to Kilogram per Milliliter (kg/mL) using the exact conversion factor (1 gram per gallon = 2.641721e-7 kilogram per milliliter). See the formula, worked examples, and conversion table.
Grams per Gallon to Kilograms per Milliliter converter
Converter
Chemistry Converter
Convert concentration, molarity, amount, and laboratory scientific units by compatible family.
Context values
Some unit families need one extra value for a physically accurate result.
Mass concentration.
Result = input x 0.2641720524 / 1e+6.
Mass Concentration units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Grams per Gallon to Kilograms per Milliliter
Gram per Gallon and Kilogram per Milliliter both measure mass concentration — how much of a substance is dissolved or dispersed in a given volume — a core calculation for preparing lab solutions, checking water quality against a regulatory limit, or formulating a pharmaceutical dose. Both are mass concentration units.
Formula
kilograms per milliliter = grams per gallon × 2.641721e-7
This factor comes from each unit's defined relationship to the category's base unit: 1 gram per gallon equals 0.264172052358 base units, and 1 kilogram per milliliter equals 1000000 base units, so dividing one by the other gives the direct gram per gallon-to-kilogram per milliliter factor of 2.641721e-7.
Simple example
1 g/gal × 2.641721e-7 = 2.641721e-7 kg/mL
1 gram per gallon = 2.641721e-7 kilograms per milliliter.
Real-world example
100 g/gal × 2.641721e-7 = 0.0000264172 kg/mL
100 grams per gallon = 0.0000264172 kilograms per milliliter.
Conversion table
| Gram per Gallon (g/gal) | Kilogram per Milliliter (kg/mL) |
|---|---|
| 0.001 g/gal | 2.641721e-10 kg/mL |
| 0.01 g/gal | 2.641721e-9 kg/mL |
| 0.1 g/gal | 2.641721e-8 kg/mL |
| 1 g/gal | 2.641721e-7 kg/mL |
| 10 g/gal | 0.0000026417 kg/mL |
| 100 g/gal | 0.0000264172 kg/mL |
Reverse conversion: Kilogram per Milliliter to Gram per Gallon
2.641721e-7 kg/mL × 3785411.784 = 1.00000018 g/gal
2.641721e-7 kilograms per milliliter = 1.00000018 grams per gallon.
grams per gallon = kilograms per milliliter × 3785411.784
For a page dedicated to this direction, see Kilogram per Milliliter to Gram per Gallon.
Understanding the Gram per Gallon (g/gal)
Mass concentration.
Understanding the Kilogram per Milliliter (kg/mL)
Mass concentration.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many kilograms per milliliter are in 1 gram per gallon?
1 gram per gallon equals 2.641721e-7 kilograms per milliliter, using the exact defined conversion factor rather than an estimate.
How do I convert gram per gallon to kilogram per milliliter?
Multiply the gram per gallon value by 2.641721e-7. The converter above does this instantly to whatever precision you set.
How do I convert kilogram per milliliter back to gram per gallon?
Use the reverse factor: 1 kilogram per milliliter equals 3,785,411.784 grams per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a gram per gallon?
Gram per Gallon (g/gal) is a unit of chemistry.
What is a kilogram per milliliter?
Kilogram per Milliliter (kg/mL) is a unit of chemistry.
Is the gram per gallon to kilogram per milliliter conversion exact?
Yes. Both gram per gallon and kilogram per milliliter are defined by fixed standards rather than physical artifacts, so the factor of 2.641721e-7 used above is exact to as many digits as you choose to display.
What's the difference between mass concentration and molarity?
Mass concentration expresses how much mass of a substance is present per unit volume (for example, grams per liter). Molarity expresses the amount in moles per liter instead, which accounts for the substance's molecular weight. This category converts mass-concentration units.