How many liters per minute is 1 GPM?

1 US gallon per minute (GPM) equals 3.78541 liters per minute (L/min). This is one of the most common conversions in water treatment, as equipment may be rated in either US or metric units.

How do you convert PSI to bar for water treatment systems?

To convert PSI to bar, divide by 14.5038. For example, 150 PSI equals approximately 10.34 bar. Reverse osmosis membranes often have pressure ratings listed in both PSI and bar depending on the manufacturer.

What is the difference between ppm and mg/L in water treatment?

For practical purposes in water treatment, ppm (parts per million) and mg/L (milligrams per liter) are equivalent because the density of dilute aqueous solutions is approximately 1 kg/L. Grains per gallon (gpg) is another common unit, where 1 gpg equals 17.118 ppm.

Water Treatment Unit Converter

Water Treatment Unit Converter | ForeverPure

Water Treatment Unit Converter

Instant bidirectional conversions for flow rate, pressure, volume, temperature, weight, length & concentration units used in water treatment.

💧 Flow Rate

GPM

m³/h

L/min

GPD

m³/day

Barrels/day

⚡ Pressure

PSI

bar

kPa

atm

Meters H₂O

📦 Volume

Gallons (US)

Liters

m³

Barrels (42 gal)

Cubic Feet

📏 Length

Inches

Millimeters

Centimeters

Feet

Meters

🌡 Temperature

°F (Fahrenheit)

°C (Celsius)

K (Kelvin)

⚖ Weight

Pounds (lbs)

Kilograms

Short Tons (US)

Tonnes (Metric)

🧪 Concentration

ppm (mg/L)

gpg (Grains/Gal)

meq/L (as CaCO₃)

% (Percent)

Common Water Treatment Conversions

1 GPM = ? L/min 1 bar = ? PSI 100 PSI = ? bar 1 m³/h = ? GPM 1 gpg = ? ppm 10,000 GPD = ? m³/day 25°C = ? °F 1 Barrel = ? Gallons

More Water Treatment Calculators

TDS & Water Quality RO System Sizing Desalination Cost LSI / Scaling Index Chemical Dosing Cooling Tower Evaporation Pipe Sizing & Velocity Ion Exchange Sizing Pump Power & Motor

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