Ml To Kg
Convert milliliters (ml) to kilograms (kg) online with our free converter. Select from water, milk, oil, honey or enter custom density for accurate volume-to-weight conversion.
About This Calculator
The Ml to Kg Converter is a free online tool that converts milliliters (ml) to kilograms (kg) using the density of the selected substance. Whether you are a home cook scaling a recipe, a student learning about density and mass, or a professional needing accurate volume-to-weight conversions for liquids like water, milk, cooking oil, honey, or gasoline, this calculator gives you instant, accurate results with multiple unit outputs.
The conversion follows the standard density formula: mass (kg) = volume (ml) × density (g/ml) / 1000. Since density varies between substances — water has a density of 1 g/ml (1000 ml = 1 kg), while honey at 1.42 g/ml weighs significantly more — selecting the correct substance is essential. This calculator includes 6 preset substances and a custom density option for any other liquid or granular material. The result displays kilograms, grams, pounds, and ounces for maximum flexibility.
Simply select your substance (or choose Custom to enter a specific density in g/ml), enter the volume in milliliters, and click Convert. The converter instantly computes the weight across multiple units. For water at 4°C, 1000 ml equals exactly 1 kg, making it a useful mental reference point. For all other substances, the density factor adjusts the result precisely.
Regional Notes
India: The metric system is standard. Milliliters and liters are used for liquids, and kilograms for bulk goods. 1 cup in Indian recipes typically equals 200 ml. This converter follows the international metric standard.
United States: US recipes commonly use cups, fluid ounces, and tablespoons. 1 US cup = 236.6 ml. Weight-based baking is increasingly popular — use this converter to translate liquid volumes to kilograms and grams for precise results.
United Kingdom: The UK uses both metric and imperial measurements. 1 UK cup = 284 ml. UK nutritional labels often list both ml and g for liquids. This converter helps transition between volume and weight measurements using verified substance densities.
Frequently Asked Questions
How do you convert ml to kg?
To convert milliliters (ml) to kilograms (kg), multiply the volume by the substance's density in g/ml, then divide by 1000. The formula is: mass (kg) = volume (ml) × density (g/ml) / 1000. For water at 4°C with a density of 1 g/ml, 1000 ml equals 1 kg. For other substances like cooking oil (0.92 g/ml), 1000 ml equals 0.92 kg.
Does 1 ml equal 1 kg?
No, 1 ml does not equal 1 kg. 1 ml of water weighs 1 gram (0.001 kg), so 1000 ml of water equals 1 kg. For most other substances, the weight differs based on density. For example, 1000 ml of cooking oil weighs 0.92 kg, while 1000 ml of honey weighs 1.42 kg. Always use the substance's density for accurate conversion.
How many kg is 1000 ml of water?
1000 ml of pure water at 4°C weighs exactly 1 kilogram (1 kg). This is because water has a density of 1 g/ml, and the formula is: 1000 ml × 1 g/ml / 1000 = 1 kg. At room temperature (20°C), water density is approximately 0.998 g/ml, so 1000 ml weighs about 0.998 kg.
How many kg is 500 ml of milk?
500 ml of milk weighs approximately 0.515 kg (515 grams). Milk has a density of about 1.03 g/ml, so the calculation is 500 ml × 1.03 g/ml / 1000 = 0.515 kg. The exact weight varies slightly with fat content — whole milk is around 1.03 g/ml, while skim milk is closer to 1.035 g/ml.
What is the density of common substances in g/ml?
Common substance densities in g/ml: water 1.00, milk 1.03, cooking oil 0.92, honey 1.42, corn syrup 1.36, gasoline 0.75, olive oil 0.92, butter (melted) 0.92, vinegar 1.05, and sea water 1.03. Density varies with temperature — liquids expand when heated, making them less dense. For precise scientific work, always use the density at the specific temperature.
Is the ml to kg conversion the same in the US, UK, and India?
Yes, the mathematical conversion between milliliters and kilograms is universal and does not vary by country. The metric system defines 1 ml as 1 cubic centimeter and 1 kg as 1000 grams. However, recipe measurements may differ — a US cup is 236.6 ml, a UK cup is 284 ml, and an Indian cup is 200 ml. This calculator uses international metric standards.
How do I convert kg back to ml?
To convert kilograms back to milliliters, divide the mass in kg by the density in g/ml, then multiply by 1000. The formula is: volume (ml) = mass (kg) × 1000 / density (g/ml). For example, 2 kg of cooking oil (0.92 g/ml) equals 2 × 1000 / 0.92 = 2174 ml. This converter focuses on the ml to kg direction; use the kg to ml converter on Calculy for the reverse calculation.
Can I use this converter for cooking and baking?
Yes, this ml to kg converter is ideal for cooking and baking when you need to convert liquid volume measurements to weight. Many professional recipes list ingredients by weight (kg or g) for accuracy, while home recipes often use volume (ml or cups). Select the appropriate substance (water, milk, oil, honey) to get accurate weight equivalents for your recipes.