Formula used
Oil volume depends on mass and density. Divide kilograms by kilograms per liter. Temperature correction adjusts the density before conversion begins.
Kilograms = Liters × Density in kg/L
Adjusted density = Reference density ÷ [1 + β × (Current temperature − Reference temperature)]
How to use this calculator
Select the conversion direction and enter an amount. Choose an oil preset or supply density. Add temperature and container details when greater precision matters.
- Choose kilograms-to-liters or liters-to-kilograms.
- Enter the amount, unit, and batch count.
- Select an oil or override its density.
- Enable temperature correction when reliable data exists.
- Set container capacity and maximum filling percentage.
- Select oils for comparison, then calculate.
Oil density reference table
These densities are practical reference estimates. Actual products can differ by formulation. Supplier data gives the most reliable conversion result.
| Oil type | Approximate density at 20°C | Approximate liters per kilogram |
|---|---|---|
| Vegetable oil | 0.920 kg/L | 1.087 L/kg |
| Sunflower oil | 0.918 kg/L | 1.089 L/kg |
| Canola oil | 0.915 kg/L | 1.093 L/kg |
| Olive oil | 0.915 kg/L | 1.093 L/kg |
| Coconut oil | 0.925 kg/L | 1.081 L/kg |
| Palm oil | 0.890 kg/L | 1.124 L/kg |
| Soybean oil | 0.917 kg/L | 1.091 L/kg |
| Corn oil | 0.922 kg/L | 1.085 L/kg |
| Peanut oil | 0.912 kg/L | 1.096 L/kg |
| Sesame oil | 0.919 kg/L | 1.088 L/kg |
| Mineral oil | 0.850 kg/L | 1.176 L/kg |
| Hydraulic oil | 0.870 kg/L | 1.149 L/kg |
| Engine oil | 0.875 kg/L | 1.143 L/kg |
| Gear oil | 0.890 kg/L | 1.124 L/kg |
| Transformer oil | 0.880 kg/L | 1.136 L/kg |
| Diesel fuel | 0.835 kg/L | 1.198 L/kg |
| Crude oil | 0.850 kg/L | 1.176 L/kg |
Worked examples
Examples show how density changes volume. Lower density produces more liters per kilogram. Always replace estimates with verified product information when available.
| Mass | Oil | Density | Calculated volume |
|---|---|---|---|
| 10 kg | Vegetable oil | 0.920 kg/L | 10.870 L |
| 25 kg | Olive oil | 0.915 kg/L | 27.322 L |
| 50 kg | Engine oil | 0.875 kg/L | 57.143 L |
| 100 kg | Diesel fuel | 0.835 kg/L | 119.760 L |
Temperature and accuracy notes
Oil generally expands as temperature rises. Its density therefore decreases at warmer temperatures. Accurate work requires measured density and verified expansion coefficients.
Frequently asked questions
How do I convert kilograms of oil to liters?
Divide the oil mass by its density. Density must use kilograms per liter. The calculator completes conversions and displays each calculation step.
Why does oil density affect the result?
Density connects mass with occupied volume. Lighter oils occupy more space per kilogram. Heavier oils produce fewer liters from equal mass.
Is one kilogram of oil one liter?
Usually, one kilogram exceeds one liter of oil. Most oils are less dense than water. Exact volume depends on oil type and temperature.
What density should I use for cooking oil?
Many cooking oils range near 0.91 kilograms per liter. Individual products can vary from that estimate. Check the manufacturer specification for better accuracy.
Does oil density change with temperature?
Yes, warmer oil usually has lower density. Cooler oil generally has higher density. Enable temperature correction when suitable coefficient data exists.
How many liters are in 20 kilograms of oil?
At 0.92 kg/L, twenty kilograms equals 21.739 liters. Different densities produce different converted volumes. Enter the correct oil for a reliable estimate.
Can I enter a custom oil density?
Yes, enable the custom density override. Select the density unit you possess. The calculator converts it internally into kilograms per liter.
What is the difference between mass and volume?
Mass measures the amount of matter. Volume measures the space that matter occupies. Density mathematically connects both physical quantities together.
How accurate are the oil density presets?
Presets are approximate reference values. Real products vary by grade and additives. Use laboratory or supplier values for critical calculations.
Can this calculator handle engine oil?
Yes, select the engine oil preset. You can also override its estimated density. Temperature correction supports more detailed operating-condition estimates.
How do I convert liters back to kilograms?
Choose the liters-to-kilograms conversion direction. Enter liters and select the oil. The calculator multiplies volume by adjusted density automatically.