Mass concentration.
Grams per Gallon to Grams per Milliliter Converter — g/gal to g/mL
Convert Gram per Gallon (g/gal) to Gram per Milliliter (g/mL) using the exact conversion factor (1 gram per gallon = 0.0002641721 gram per milliliter). See the formula, worked examples, conversion table, and common uses.
Grams per Gallon to Grams 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 / 1000.
Mass Concentration units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Grams per Gallon to Grams per Milliliter
Gram per Gallon and Gram 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
grams per milliliter = grams per gallon × 0.000264172052358
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 gram per milliliter equals 1000 base units, so dividing one by the other gives the direct gram per gallon-to-gram per milliliter factor of 0.000264172052358.
Simple example
1 g/gal × 0.0002641720524 = 0.0002641721 g/mL
1 gram per gallon = 0.0002641721 grams per milliliter.
Real-world example
100 g/gal × 0.0002641720524 = 0.0264172052 g/mL
100 grams per gallon = 0.0264172052 grams per milliliter.
Conversion table
| Gram per Gallon (g/gal) | Gram per Milliliter (g/mL) |
|---|---|
| 0.001 g/gal | 2.641721e-7 g/mL |
| 0.01 g/gal | 0.0000026417 g/mL |
| 0.1 g/gal | 0.0000264172 g/mL |
| 1 g/gal | 0.0002641721 g/mL |
| 10 g/gal | 0.0026417205 g/mL |
| 100 g/gal | 0.0264172052 g/mL |
Reverse conversion: Gram per Milliliter to Gram per Gallon
0.0002641721 g/mL × 3785.411784 = 1.00000018 g/gal
0.0002641721 grams per milliliter = 1.00000018 grams per gallon.
grams per gallon = grams per milliliter × 3785.411784
For a page dedicated to this direction, see Gram per Milliliter to Gram per Gallon.
Understanding the Gram per Gallon (g/gal)
Mass concentration.
Understanding the Gram per Milliliter
Gram per Milliliter (g/mL) measures density. Numerically identical to grams per cubic centimeter and to kilograms per liter, since one milliliter equals one cubic centimeter exactly. It is classified as a metric derived density unit.
Where it's used: Widely used in chemistry education and laboratory settings internationally
Uses of the Gram per Milliliter today
- Commonly used in chemistry coursework and laboratory reporting to express the density of liquids and solutions
Gram per Milliliter — sources
- BIPM SI Brochure — Gram and milliliter as accepted units for expressing density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grams per milliliter are in 1 gram per gallon?
1 gram per gallon equals 0.0002641721 grams per milliliter, using the exact defined conversion factor rather than an estimate.
How do I convert gram per gallon to gram per milliliter?
Multiply the gram per gallon value by 0.0002641720524. The converter above does this instantly to whatever precision you set.
How do I convert gram per milliliter back to gram per gallon?
Use the reverse factor: 1 gram per milliliter equals 3,785.411784 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 gram per milliliter?
Gram per Milliliter (g/mL) measures density. Numerically identical to grams per cubic centimeter and to kilograms per liter, since one milliliter equals one cubic centimeter exactly. It is classified as a metric derived density unit.
Is the gram per gallon to gram per milliliter conversion exact?
Yes. Numerically identical to grams per cubic centimeter and to kilograms per liter, since one milliliter equals one cubic centimeter exactly. That fixed definition is what the converter above uses, so any rounding you see is a display choice, not a limitation of the math.
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.