Convert Cubic Foot to Litre

Quick answer: Cubic Foot to Litre

1 Cubic Foot = 28.31685 Litre (ft³ → L). To convert cubic foot to litre, multiply by 28.31685. To convert litre to cubic foot, multiply by 0.03531467. The converter at the top does this instantly and both ways; the sections below give the formula, worked examples, a full conversion chart and answers to the most common cubic foot-to-litre questions.

How to convert Cubic Foot to Litre

To convert cubic foot to litre, multiply the number of cubic foot by the conversion factor 28.31685, because 1 ft³ = 28.31685 L. The conversion is linear, so the same factor works for any value — whole numbers, decimals or fractions. For the reverse direction, 1 L = 0.03531467 ft³, so you divide by 28.31685 (or multiply by 0.03531467) to turn litre back into cubic foot.

L = ft³ × 28.31685  ·  ft³ = L × 0.03531467

1. Write down the value you want to convert, in cubic foot.
2. Multiply it by 28.31685.
3. The result is the same area/length/quantity expressed in litre.

Cubic Foot to Litre — worked examples

Each row shows the exact arithmetic so you can follow the conversion step by step. For example, 5 cubic foot is 141.5842 litre because 5 ft³ × 28.31685 = 141.5842 L.

Common Cubic Foot to Litre conversions

These are the cubic foot-to-litre values people look up most often. Every figure is computed from the exact factor, so you can rely on them for quick reference:

• 1 cubic foot = 28.31685 litre
• 2 cubic foot = 56.63369 litre
• 2.5 cubic foot = 70.79212 litre
• 3 cubic foot = 84.95054 litre
• 4 cubic foot = 113.2674 litre
• 5 cubic foot = 141.5842 litre
• 6 cubic foot = 169.9011 litre
• 7 cubic foot = 198.2179 litre
• 8 cubic foot = 226.5348 litre
• 9 cubic foot = 254.8516 litre
• 10 cubic foot = 283.1685 litre
• 12 cubic foot = 339.8022 litre
• 15 cubic foot = 424.7527 litre
• 20 cubic foot = 566.3369 litre
• 25 cubic foot = 707.9212 litre
• 30 cubic foot = 849.5054 litre
• 50 cubic foot = 1,415.842 litre
• 75 cubic foot = 2,123.763 litre
• 100 cubic foot = 2,831.685 litre
• 200 cubic foot = 5,663.369 litre
• 500 cubic foot = 14,158.42 litre
• 1000 cubic foot = 28,316.85 litre

Cubic Foot to Litre conversion chart (both directions)

The chart below converts cubic foot to litre and litre to cubic foot side by side, so it works whichever way you need. 1 cubic foot = 28.31685 litre, and 1 litre = 0.03531467 cubic foot.

Cubic Foot vs Litre: which is bigger?

A cubic foot is the larger unit: one cubic foot equals 28.31685 litres. Put another way, you need 28.31685 litres to make a single cubic foot.

What is a Cubic Foot? History, origin and usage

The cubic foot is a US customary and imperial unit equal to the volume of a cube one foot on each side, and like the inch it became precisely defined once the foot was fixed against the metre. It has been a standard trade measure for bulky goods and gases for centuries in the English-speaking world.

The cubic foot is widely used in the United States for natural-gas billing, refrigerator and appliance capacity, shipping and storage volume, and airflow in heating and ventilation (where cubic feet per minute, or CFM, rates fans and ducts). Builders and movers estimate space in cubic feet.

US gas utilities often bill in hundreds (CCF) or thousands (MCF) of cubic feet rather than single cubic feet. One cubic foot contains 1,728 cubic inches, since a foot is twelve inches.

What is a Litre? History, origin and usage

The litre was introduced in France in 1795 as a republican measure equal to one cubic decimetre, its name derived from the older French litron, in turn from Byzantine Greek (where it had been a unit of weight) via Late Medieval Latin. In 1901 the litre was redefined as the volume of one kilogram of pure water at maximum density, making it very slightly larger than a cubic decimetre. In 1964 that awkward definition was abandoned and the litre returned to being exactly one cubic decimetre.

The litre is the everyday metric unit of volume across most of the world: fuel sold at the pump, bottled water and soft drinks, milk, engine and cooking oil, and car engine capacity. It is the unit people reach for whenever a volume is larger than a kitchen spoonful but smaller than a tankful.

The litre is not an official SI unit but is accepted for use alongside it. Its symbol may be written as a capital L precisely because a lowercase l is easily mistaken for the digit 1 in many fonts.

Convert 1 Cubic Foot to other units

It can help to see a cubic foot next to the other units it is commonly compared with. One cubic foot (ft³) is equal to:

Convert 1 Litre to other units

One litre (L) is equal to:

Tips for converting Cubic Foot to Litre

• To go from cubic foot to litre, multiply by 28.31685; to go back, divide by 28.31685 (or multiply by 0.03531467).
• For a quick mental estimate, remember that 1 cubic foot ≈ 28.31685 litre, so 10 cubic foot ≈ 283.1685 litre.
• The converter above keeps full precision; the tables round for readability, so use the tool for exact figures.
• Both fields update live as you type — change either side to convert in that direction.

How to use this Cubic Foot to Litre converter

Type a number into the Cubic Foot field and the equivalent in Litre appears instantly — there is no “convert” button to press and nothing is sent to a server, so it works offline once the page has loaded and is safe for any data. You can also type into the Litre field to convert the other way (litre to cubic foot). Use the swap control to flip the two units, and copy the result with a single click. Because the calculation runs in your browser with full floating-point precision, the converter is more exact than the rounded figures shown in the reference chart above — use the chart for quick look-ups and the tool for precise work.

Accuracy and method

Every figure on this page — the formula, the worked examples, the conversion chart and the “convert to other units” tables — is computed from a single verified conversion factor (1 ft³ = 28.31685 L), never copied from a hand-typed lookup table that could drift. That factor is derived from each unit’s definition in terms of a common base unit, and an automated check re-verifies all of the site’s factors on every update, so the numbers here stay correct over time. This matters for cubic foot-to-litre conversions because a small rounding error in a published table compounds quickly at larger quantities; computing from the exact factor avoids that.

Sources

• NIST Special Publication 811 — Guide for the Use of the SI — publishes the exact metric equivalents of the customary units. The inch, foot, yard and mile are defined exactly in metres by the 1959 international yard-and-pound agreement, so every imperial figure on this page is exact, not rounded.
• BIPM — The International System of Units (SI Brochure) — the defining document for the SI, published by the International Bureau of Weights and Measures. It fixes the base unit that this conversion resolves to, which is why the factor here can be exact rather than approximate.

Watch the system: a <strong>US</strong> gallon, quart, pint and fluid ounce are <strong>not</strong> the same size as the <strong>imperial (UK)</strong> ones — a US gallon is 3.785 L while an imperial gallon is 4.546 L, and a US fluid ounce (29.57 mL) is slightly larger than an imperial fluid ounce (28.41 mL). The units on this page are labelled US or Imperial so the result is unambiguous.

Frequently asked questions

How many litre are in 1 cubic foot?

1 cubic foot = 28.31685 litre (L). To convert any number of cubic foot to litre, multiply by 28.31685.

How do I convert cubic foot to litre?

Multiply the number of cubic foot by 28.31685. For example, 10 cubic foot = 10 × 28.31685 = 283.1685 litre, and 25 cubic foot = 707.9212 litre.

How many cubic foot are in 1 litre?

1 litre = 0.03531467 cubic foot. So to convert litre back to cubic foot, multiply by 0.03531467.

What is the formula to convert cubic foot to litre?

litre = cubic foot × 28.31685. The reverse formula is cubic foot = litre × 0.03531467.

How much is 100 cubic foot in litre?

100 cubic foot = 2,831.685 litre. (And 1000 cubic foot = 28,316.85 litre.)

Which is bigger, a cubic foot or a litre?

A cubic foot is larger: 1 cubic foot = 28.31685 litre.

Is this cubic foot to litre converter accurate?

Yes — every value is computed from the exact 28.31685 L per ft³ factor (not rounded look-up tables), and the factors are re-verified automatically on every update.

Can I convert litre to cubic foot too?

Yes. The converter works both ways — enter a value in either field. 1 litre = 0.03531467 cubic foot.

Related volume conversions

• Litre to Cubic Foot
• Millilitre to Cubic Foot
• US Quart to Litre
• Litre to Microlitre
• Cubic Foot to Millilitre
• Microlitre to Litre
• Imperial Fluid Ounce to Litre
• Litre to Imperial Fluid Ounce
• Litre to US Quart
• Litre to Millilitre

See all volume conversions →