Convert Hectoliter to US Gallon
Convert hectoliters to us gallons instantly. 1 hectoliter = 26.4172052358 us gallon — use the live calculator, the exact formula, a conversion table and worked examples. Also check the US Gallon to Hectoliter converter for the reverse conversion.
Units explained
Hectoliter
A hectoliter is 100 liters (0.1 m³).
Formed with the SI prefix hecto- applied to the liter.
Standard in brewing, winemaking and agricultural trade across Europe.
Metric prefix system.
US Gallon
The US liquid gallon is defined as exactly 231 cubic inches (3.785411784 liters).
Based on the English wine gallon of 231 cubic inches, retained by the US after 1824.
The primary US unit for fuel, milk and large beverage containers.
English wine gallon; US since 1824.
Hectoliter to US Gallon conversion formula
The relationship between hectoliters and us gallons:
To convert hectoliters to us gallons, multiply the value in hectoliters by 26.4172052358. To reverse, multiply us gallons by 0.0378541178.
How to use this converter
Type a value into the calculator. The result in us gallons updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the US Gallon to Hectoliter converter for the reverse direction.
Step-by-step: convert hectoliters to us gallons
- Write down the value in hectoliters (hL).
- Multiply that value by the factor 26.4172052358.
- The product is the equivalent value in us gallons (gal).
- To reverse, multiply the us gallon value by 0.0378541178.
Worked examples
Example 1 — Convert 1 hL to gal:
1 × 26.4172052358 = 26.4172052358 gal
Example 2 — Convert 100 hL to gal:
100 × 26.4172052358 = 2641.7205235815 gal
Real-world example — Pet and accessory dimensions
A 3-hectoliter dog leash equals a tidy round value in us gallons. Pet-supply shopping frequently mixes the two units across product specifications.
3 hL × 26.4172052358 = 79.2516157074 gal
Real-world example — Fabric and tailoring
One hectoliter of fabric converts to a value in us gallons commonly used for seam allowances. Garment patterns frequently switch between the two units on a single instruction sheet.
1 hL × 26.4172052358 = 26.4172052358 gal
Real-world example — Body height conversion (reverse direction)
You measure 1.75 hectoliters tall and need to fill in a gym membership form or medical record that asks for height in us gallons. This is the most-used everyday length conversion in metric-using countries.
1.75 hL × 26.4172052358 = 46.2301091627 gal
Hectoliter to US Gallon conversion table
Standard reference values for converting hectoliters to us gallons:
| Hectoliter [hL] | US Gallon [gal] |
|---|---|
| 0.01 | 0.2641720524 |
| 0.1 | 2.6417205236 |
| 1 | 26.4172052358 |
| 2 | 52.8344104716 |
| 3 | 79.2516157074 |
| 4 | 105.6688209433 |
| 5 | 132.0860261791 |
| 10 | 264.1720523581 |
| 20 | 528.3441047163 |
| 30 | 792.5161570744 |
| 40 | 1056.6882094326 |
| 50 | 1320.8602617907 |
| 100 | 2641.7205235815 |
| 500 | 13208.6026179074 |
| 1000 | 26417.2052358148 |
Frequently asked questions
How many us gallons is 1 hectoliter?
How do I convert hectoliters to us gallons?
How do I convert us gallons back to hectoliters?
How many us gallons is 100 hectoliters?
Popular volume unit conversions
Convert Hectoliter to other volume units
Show all Hectoliter conversions
Metric / SI (7 units)
US Customary (Liquid) (8 units)
Imperial (UK) (4 units)
Cubic (length-derived) (3 units)
Cooking / Culinary (3 units)
Sources & references
Conversion factor (1 hL = 26.4172052358 gal) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Astronomical Union — System of Astronomical Constants
The IAU defines astronomical units including the AU (149597870700 m exactly) light-year and parsec used in astronomy and astrophysics.