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Read articleConvert Liters of Antifreeze / Coolant to KG
Antifreeze / Coolant weighs 1.115 kg per litre. Convert litres to kilograms (and back) using its exact density.
Quick Metrology Summary
1 liter of Antifreeze / Coolant weighs approximately 1.115 kilograms (or 1115 grams) at standard room temperature. Because mass equals volume multiplied by density (\(m = V \times \rho\)), multiplying volume in liters by 1.115 gives the exact mass in kg.
Antifreeze / Coolant: Weight per Litre Explained
Antifreeze / Coolant has a density of 1.115 kg/L, which makes it 12% heavier than water. Coolant is a mix of ethylene glycol (1.11 kg/L) and water. Undiluted concentrate is about 1.115 kg/L, and a ready-to-use 50/50 mix is about 1.07 kg/L — both heavier than water.
When You Need This Conversion
Radiator top-ups, cooling-system refills in trucks and plant, and concentrated-antifreeze drums that are measured in litres but priced per kilogram.
What Changes the Density
Diluting to 33% glycol gives roughly 1.05 kg/L, and a 50/50 mix sits near 1.07. Use the manufacturer's mix ratio when it matters.
How it works
Enter the litres of antifreeze / coolant
Type the volume in litres. The calculator is preset to Antifreeze / Coolant at 1.115 kg/L.
Switch direction if needed
Flip to kilograms → litres to find how much space a given weight of antifreeze / coolant takes up.
Read the result
See kilograms, pounds, millilitres and gallons. Each litre adds 1.115 kg.
How to Convert Liters of Antifreeze / Coolant to Kilograms
Coolant is a mix of ethylene glycol (1.11 kg/L) and water. Undiluted concentrate is about 1.115 kg/L, and a ready-to-use 50/50 mix is about 1.07 kg/L — both heavier than water. To convert, multiply the volume in litres by 1.115. To go the other way, divide the weight in kilograms by 1.115.
kg = Litres × 1.115
L = kg ÷ 1.115
1 L → 1.115 kg
10 L → 11.15 kg
100 L → 111.5 kgExample
Convert 5 litres of antifreeze / coolant to kilograms: 5 × 1.115 = 5.575 kg, or 12.29 lb. Reversed: 5.575 kg ÷ 1.115 = 5 L.
Worked examples
| Scenario | Calculation | Result |
|---|---|---|
| 1 L of antifreeze / coolant | 1 × 1.115 kg/L | 1.115 kg |
| 5 L of antifreeze / coolant | 5 × 1.115 kg/L | 5.575 kg |
| 20 L of antifreeze / coolant | 20 × 1.115 kg/L | 22.3 kg |
| 100 L of antifreeze / coolant | 100 × 1.115 kg/L | 111.5 kg |
| 10 kg of antifreeze / coolant (reverse) | 10 ÷ 1.115 kg/L | 8.97 L |
Conversion reference
| Litres | Kilograms | Pounds | US gallons |
|---|---|---|---|
| 0.25 L | 0.279 kg | 0.61 lb | 0.07 gal |
| 0.5 L | 0.557 kg | 1.23 lb | 0.13 gal |
| 1 L | 1.115 kg | 2.46 lb | 0.26 gal |
| 2 L | 2.23 kg | 4.92 lb | 0.53 gal |
| 5 L | 5.575 kg | 12.29 lb | 1.32 gal |
| 10 L | 11.15 kg | 24.58 lb | 2.64 gal |
| 20 L | 22.3 kg | 49.16 lb | 5.28 gal |
| 50 L | 55.75 kg | 122.91 lb | 13.21 gal |
| 100 L | 111.5 kg | 245.82 lb | 26.42 gal |
Quick facts
- 1 litre of antifreeze / coolant weighs 1.115 kg (1115 g), which is 12% heavier than water.
- 1 kg of antifreeze / coolant fills 0.897 litres (897 mL).
- 1 m³ (1,000 L) of antifreeze / coolant weighs 1115 kg.
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Read articleFrequently asked questions
About 11.15 kg of concentrate.
Yes. Higher glycol content means higher density, from 1.0 kg/L (no glycol) up to 1.115 kg/L (full strength).
1 litre of antifreeze / coolant weighs 1.115 kg (1115 grams, or 2.46 lb), using a density of 1.115 kg/L.
1 kg of antifreeze / coolant is 0.897 litres. Divide the weight by the density: 1 ÷ 1.115 = 0.897.
Multiply the volume by 1.115. For example, 10 litres of antifreeze / coolant is 11.15 kg and 50 litres is 55.75 kg.
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