Flow RateGallons per Minute US to Liters per Hour

Gallons per Minute (US) to Liters per Hour

Snapshot

1 Gallon per Minute (US) equals 227.125 Liters per Hour. Conversion Encyclopedia uses the same fixed conversion basis across the calculator, common values, and reverse page for this page.

Reference basis: This conversion uses a fixed factor based on time-normalized rate definitions.
Example: For 0.1 Gallons per Minute (US), the result equals 22.712 Liters per Hour.
Use the reverse page if you need the opposite direction with the same basis.

Use the interactive calculator below for custom values and the common-value table for quick checks.

Interactive conversion

Converter Calculator

227.125 Liters per Hour (L/h)

Switch

Machine access

Available to apps and AI agents

Gallons per Minute (US) to Liters per Hour can be requested through Conversion Encyclopedia's structured interfaces by software and compatible AI agents. The identifiers below select the same calculation as the calculator.

Machine-readable identifiers

Conversion family: flow-rate
Source unit: gallons_per_minute_us
Target unit: liters_per_hour

The JSON API and OpenAPI specification use the identifiers to reach the conversion engine. WebMCP lets compatible AI agents request the same calculation.

Example API request and response

POST /api/v1/convert

Request

{
  "family": "flow-rate",
  "value": 1,
  "from": "gallons_per_minute_us",
  "to": "liters_per_hour"
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "flow-rate",
    "value": 1,
    "from": "gallons_per_minute_us",
    "to": "liters_per_hour",
    "result": {
      "raw": 227.12470703999998,
      "display": "227.125"
    },
    "canonicalPath": "/flow-rate/gallons-per-minute-us-to-liters-per-hour/"
  }
}

Full API documentation

Explanation

Formula: Liters per Hour = Gallons per Minute (US) × 227.125. Why: the route uses liters per second as the common basis, then applies the fixed US gallon definition together with the relevant per-minute or per-hour time scaling.

Gallons per Minute (US) (gpm): a US customary volumetric flow unit based on the US liquid gallon and commonly used in pumps, piping, and water systems.

Liters per Hour (L/h): a slower volumetric flow unit often used for dosing systems, filtration, and low-rate process specifications.

This route is useful when translating between SI flow units and gallon- or cubic-foot-based reporting for pumps, piping, ventilation, and plant documentation.

This conversion is purely multiplicative because both units reduce through one liters-per-second flow basis with fixed unit-volume definitions and no offset.

Method & Reference

Method basis: exact conversion formula shown in Snapshot.
Applied factor: 1 Gallon per Minute (US) = 227.125 Liters per Hour.
Consistency rule: calculator output and table values use the same constants and rounding policy.

Common Conversion Values

Gallons per Minute (US) (gpm)	Liters per Hour (L/h)
0.1	22.712
0.5	113.562
1	227.125
5	1,135.62
10	2,271.25
25	5,678.12
50	11,356.24
100	22,712.47
1,000	227,124.71

Questions & answers

Frequently Asked Questions

What is 1 gallon per minute (us) in liters per hour?

1 Gallon per Minute (US) equals 227.125 Liters per Hour on this page.

Does this Gallons per Minute (US) to Liters per Hour page use the US gallon standard?

Yes. Where US gallon units appear, this page uses the fixed US liquid gallon definition and keeps that standard aligned across the direct answer, calculator, and common values table.

When would I convert gallons per minute (us) to liters per hour?