VolumeQuarts to Gallons

Quarts to Gallons

Methodology·How We Verify

Snapshot

1 Quart equals 0.25 Gallons.

Reference basis: This conversion uses exact modern volume definitions anchored to liters or cubic meters.
Example: For 0.1 Quarts, the result equals 0.025 Gallons.

Interactive conversion

Converter Calculator

Decimals: 1.5 or 1,5. Fractions: 1/2. Scientific notation: 1e3. Write 1000 without grouping separators.

0.25 Gallons

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API and AI agent access

Quarts to Gallons.

Machine-readable identifiers

Conversion family: volume
Source unit: quart_us
Target unit: gallon_us

Use these identifiers in the API request. Sources and model limits also apply to software clients.

Example API request and response

POST /api/v1/convert

Request

{
  "family": "volume",
  "value": 1,
  "from": "quart_us",
  "to": "gallon_us"
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "volume",
    "value": 1,
    "from": "quart_us",
    "to": "gallon_us",
    "result": {
      "raw": 0.25,
      "display": "0.25"
    },
    "canonicalPath": "/volume/quarts-to-gallons/"
  }
}

API, OpenAPI and WebMCP documentation

Explanation

Divide quart milliliters by gallon milliliters, yielding 0.25 gallon per US quart.

Method & Reference

Method basis: exact conversion formula shown in Snapshot.
Applied factor: 1 Quart = 0.25 Gallons (using exact modern volume definitions anchored to liters or cubic meters).
Consistency rule: calculator output and table values use the same constants and rounding policy.

Common Conversion Values

Quarts	Gallons
0.1	0.025
1/4	0.0625
1/2	0.125
1	0.25
2	0.5
5	1.25
10	2.5
25	6.25
50	12.5
100	25

Questions & answers

Frequently Asked Questions

What is 1 quart in gallons?

1 Quart equals 0.25 Gallons on this page.

Is there a reverse Gallons to Quarts page?

Use the mirror Gallons to Quarts page to switch the direction while keeping the same fixed volume definitions.