Mass concentration.
Ounces per Gallon to Parts per billion water Converter — oz/gal to ppb
Convert Ounce per Gallon (oz/gal) to Parts per billion water (ppb) using the exact conversion factor (1 ounce per gallon = 7,489,151.707 parts per billion water). See the formula, worked examples, conversion table, and common uses.
Ounces per Gallon to Parts per billion water 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.
Approximate ug/L in water.
Result = input x 7.489151707 / 1e-6.
Mass Concentration units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Ounces per Gallon to Parts per billion water
Ounce per Gallon and Parts per billion water 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. Ounce per Gallon is most often used for used to express dilution rates on many us pesticide, herbicide, and household cleaning product labels, which commonly specify a number of fluid ounces of concentrate per gallon of water.
Formula
parts per billion water = ounces per gallon × 7489151.70731
This factor comes from each unit's defined relationship to the category's base unit: 1 ounce per gallon equals 7.48915170731 base units, and 1 parts per billion water equals 0.000001 base units, so dividing one by the other gives the direct ounce per gallon-to-parts per billion water factor of 7489151.70731.
Simple example
1 oz/gal × 7489151.707 = 7,489,151.707 ppb
1 ounce per gallon = 7,489,151.707 parts per billion water.
Real-world example
100 oz/gal × 7489151.707 = 748,915,170.7 ppb
100 ounces per gallon = 748,915,170.7 parts per billion water.
Conversion table
| Ounce per Gallon (oz/gal) | Parts per billion water (ppb) |
|---|---|
| 0.001 oz/gal | 7,489.151707 ppb |
| 0.01 oz/gal | 74,891.51707 ppb |
| 0.1 oz/gal | 748,915.1707 ppb |
| 1 oz/gal | 7,489,151.707 ppb |
| 10 oz/gal | 74,891,517.07 ppb |
| 100 oz/gal | 748,915,170.7 ppb |
Reverse conversion: Parts per billion water to Ounce per Gallon
1 ppb × 1.335265e-7 = 1.335265e-7 oz/gal
1 parts per billion water = 1.335265e-7 ounces per gallon.
ounces per gallon = parts per billion water × 1.335265e-7
For a page dedicated to this direction, see Parts per billion water to Ounce per Gallon.
Understanding the Ounce per Gallon
Ounce per Gallon (oz/gal) measures concentration (dilution rate). A US customary way to express how much concentrate is mixed into each gallon of a diluted solution. It is classified as a US customary concentration unit.
Where it's used: United States
Uses of the Ounce per Gallon today
- Used to express dilution rates on many US pesticide, herbicide, and household cleaning product labels, which commonly specify a number of fluid ounces of concentrate per gallon of water
Understanding the Parts per billion water (ppb)
Approximate ug/L in water.
Ounce per Gallon — sources
- US product-label dilution conventions (pesticide/herbicide industry guides) — Fluid ounces of concentrate per gallon is a widely used label format for US spray and cleaning product dilution instructions.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many parts per billion water are in 1 ounce per gallon?
1 ounce per gallon equals 7,489,151.707 parts per billion water, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per gallon to parts per billion water?
Multiply the ounce per gallon value by 7489151.707. The converter above does this instantly to whatever precision you set.
How do I convert parts per billion water back to ounce per gallon?
Use the reverse factor: 1 parts per billion water equals 1.335265e-7 ounces per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a ounce per gallon?
Ounce per Gallon (oz/gal) measures concentration (dilution rate). A US customary way to express how much concentrate is mixed into each gallon of a diluted solution. It is classified as a US customary concentration unit.
What is a parts per billion water?
Parts per billion water (ppb) is a unit of chemistry.
Is the ounce per gallon to parts per billion water conversion exact?
Yes. Both ounce per gallon and parts per billion water are defined by fixed standards rather than physical artifacts, so the factor of 7489151.707 used above is exact to as many digits as you choose to display.
Where is the ounce per gallon still used today?
United States
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.