Grams per liter to parts per million
Type a value in g/L to get it in ppm instantly.
1,000ppm
That's 2× as concentrated as the drink-drive limit, while salt in seawater is 35× stronger. In a liter of water that is about 1,000 mg.
What it means
How strong is that?
For dilute water solutions 1 ppm equals 1 mg/L, because a liter of water weighs a kilogram. For air and other liquids that shortcut does not hold.
The math
How to convert g/L to ppm
To convert grams per liter to parts per million, multiply by 1,000.
Example: 1 g/L × 1,000 = 1,000 ppm.
In the other direction, 1 ppm = 0.001 g/L.
Every unit
Your concentration in every unit
Tables
g/L to ppm conversion table
| g/L | ppm |
|---|---|
| 0.001 g/L | 1 ppm |
| 0.01 g/L | 10 ppm |
| 0.1 g/L | 100 ppm |
| 0.5 g/L | 500 ppm |
| 1 g/L | 1,000 ppm |
| 2 g/L | 2,000 ppm |
| 5 g/L | 5,000 ppm |
| 10 g/L | 10,000 ppm |
| 25 g/L | 25,000 ppm |
| 50 g/L | 50,000 ppm |
| 75 g/L | 75,000 ppm |
| 100 g/L | 100,000 ppm |
ppm to g/L conversion table
| ppm | g/L |
|---|---|
| 0.001 ppm | 1×10⁻⁶ g/L |
| 0.01 ppm | 1×10⁻⁵ g/L |
| 0.1 ppm | 0.0001 g/L |
| 0.5 ppm | 0.0005 g/L |
| 1 ppm | 0.001 g/L |
| 2 ppm | 0.002 g/L |
| 5 ppm | 0.005 g/L |
| 10 ppm | 0.01 g/L |
| 25 ppm | 0.025 g/L |
| 50 ppm | 0.05 g/L |
| 75 ppm | 0.075 g/L |
| 100 ppm | 0.1 g/L |
Quick answers
Quick answers
- How many ppm is 1 g/L?
- 1 g/L is 1,000 ppm.
- How many ppm is 10 g/L?
- 10 g/L is 10,000 ppm.
The units
About these units
Grams per liter (g/L)
A thousand mg/L. Brines, syrups and concentrated solutions are measured this way.
Parts per million (ppm)
One part in a million. Water quality, CO₂ levels and trace metals are reported in ppm.
Keep going