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KG to Liters Converter

Enter a mass in kilograms and choose the substance to see how many liters it fills. Covers water, milk, cooking oils, fuels, honey, sugar, flour and sand, or any custom density.

Last updated: October 24, 2026

Mass

Substance

Custom density

kg/L

Same number as g/mL; divide kg/m³ by 1,000

Enter your values to see the result.

How to use the KG to Liters Converter

Enter the mass in kilograms.
Choose the substance, or pick Custom density and type its kg/L value.
Read the volume in liters, plus mL, gallons, cups and cubic meters.
Check the table for other weights of the same substance.
Copy the results or download the table as CSV.

KG to liters formula

To turn a mass into a volume, divide by the density of the substance:

liters = kg ÷ density (kg/L)

For water the answer is easy because 1 kg takes up about 1 liter. Lighter substances fill more space: 1 kg of cooking oil at 0.92 kg/L is 1 ÷ 0.92 = 1.087 L, and 1 kg of flour, which is full of air, fills about 1.7 L. Denser ones fill less: 1 kg of honey is only 0.70 L.

How many liters is 1 kg?

Substance	Density (kg/L)	Liters per kg	mL per kg	Liters in 10 kg	US gal per kg
Water	1	1	1,000	10	0.264
Milk (whole)	1.03	0.971	971	9.71	0.256
Cooking oil (vegetable)	0.92	1.087	1,087	10.87	0.287
Olive oil	0.91	1.099	1,099	10.99	0.29
Gasoline (petrol)	0.745	1.342	1,342	13.42	0.355
Diesel fuel	0.84	1.19	1,190	11.9	0.314
Kerosene / jet fuel	0.8	1.25	1,250	12.5	0.33
Ethanol (alcohol)	0.789	1.267	1,267	12.67	0.335
Honey	1.42	0.704	704	7.04	0.186
Granulated sugar (bulk)	0.85	1.176	1,176	11.76	0.311
All-purpose flour (bulk)	0.59	1.695	1,695	16.95	0.448
Sand (dry, loose)	1.6	0.625	625	6.25	0.165
Sand (wet)	1.9	0.526	526	5.26	0.139

Bulk solids (sugar, flour, sand) vary with how tightly they are packed. Sifted flour can be as light as 0.5 kg/L, while packed flour can exceed 0.7 kg/L.

Where kg to liters helps

Buying fuel or oil by weight. Industrial suppliers often quote kilograms; divide by density to know how many liters fit in your tank or drums.
Cooking from metric recipes. If a recipe lists 500 g of milk, that's 0.5 ÷ 1.03 = 0.485 L, a little under two US cups.
Sizing containers. A 25 kg bag of dry sand takes about 15.6 L, so it fits in a 20 L bucket; wet sand packs tighter at around 13 L.
Use the custom field with the density from a product data sheet for chemicals, paints or anything not listed.

Frequently asked questions

How do you convert kg to liters?

Divide the mass in kilograms by the density in kg/L. For water, 1 kg is about 1 liter; for cooking oil (0.92 kg/L), 1 kg is about 1.09 liters.

How many liters is 1 kg of water?

About 1 liter. Pure water is 1.000 kg/L at 4 °C and 0.998 kg/L at 20 °C, so 1 kg at room temperature is 1.002 L.

How many liters is 1 kg of diesel?

At a typical 0.84 kg/L, 1 kg of diesel is about 1.19 liters, so 40 kg is roughly 47.6 liters.

How many liters is 1 kg of honey?

Honey is about 1.42 kg/L, so 1 kg fills roughly 0.70 liters (700 mL).

Why are flour and sand results only estimates?

They are bulk materials with air between the grains. Their density depends on packing, sifting and moisture, so a measured volume can differ by 10 to 20%.

Can I convert kg to liters without knowing the substance?

No. Kilograms measure mass and liters measure volume; the density of the material is what links them. Only for water are the two numbers almost equal.

Are all the tools on FreeToolCabin tested for quality and accuracy?

Yes! Every tool on our site undergoes automated Q/A testing in real browser environments to ensure high precision, correct output, and zero errors. If you happen to spot a bug or have a suggestion, please contact us at [email protected] and our team will review it right away.

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