Gallons per Minute (GPM) to Liters per Second Converter

Convert Gallons per Minute (GPM) to Liters per Second (LPS) with our precise and user-friendly online converter tool.

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How to use

Enter the flow rate in Gallons per Minute. The calculator multiplies by the precise conversion factor to produce Liters per Second instantly.

Methodology

The conversion uses the constant factor 0.0630902, taken from SI to US customary equivalences adopted by NIST.

Full original guide (expanded)

Use this tool to convert flow rates from Gallons per Minute (GPM) to Liters per Second (LPS). Ideal for engineers, scientists, and students who need precise metric results.

Data Source and Methodology

All calculations are based on the standard conversion formula provided by NIST.

Formula: LPS = GPM × 0.0630902

Glossary of Terms

  • GPM: Gallons per Minute, the imperial flow rate commonly used in the United States.
  • LPS: Liters per Second, the SI flow rate used in science and international engineering.

Example Calculation

If you have 50 GPM, the conversion is:

LPS = 50 × 0.0630902 = 3.15451

Frequently Asked Questions (FAQ)

What is the formula to convert GPM to LPS? LPS = GPM × 0.0630902.

Why convert GPM to LPS? Converting is helpful when working in SI units or when comparing to international specifications.

Formulas

Conversion formulas

\[ \text{LPS} = \text{GPM} \times 0.0630902 \]

\[ \text{LPM} = \text{LPS} \times 60 \]

Use the factor 0.0630902 to switch from US customary to metric flow rates.

Citations
Changelog
  • 0.1.0-draft — 2026-01-19: Initial audit spec draft generated from HTML extraction (review required).
  • Verify formulas match the calculator engine and convert any text-only formulas to LaTeX.
  • Confirm sources are authoritative and relevant to the calculator methodology.
✓ Verified by Ugo Candido
Last Updated: 2026-01-19
Version 0.1.0-draft