Nitrite PPM Calculator
Calculate nitrite (NO₂⁻) concentration in water using mass & volume — ideal for drinking water and aquariums.
Enter sample water data
Formula: PPM = mg of nitrite ÷ liters of water
Result
Fill inputs & calculate.
Safe Levels Guide
- 0 ppm: Best for fish & drinking water
- 0.01–1 ppm: Stressful to fish — monitor
- >1 ppm: Dangerous — immediate action needed
Nitrite PPM Calculator — Water Quality Testing
Nitrite (NO₂⁻) is toxic to aquatic animals and should be kept close to 0 ppm. This nitrite calculator converts a measured mass of nitrite in a sample volume into ppm (mg/L), which is the standard reporting unit.
Recommended nitrite levels
- 0 ppm: Safe
- 0.01–1 ppm: Harmful to fish, babies
- >1 ppm: Immediate filtration needed