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Read articleConvert Liters of Gypsum Plaster to KG
Gypsum Plaster weighs 1.2 kg per litre. Convert litres to kilograms (and back) using its exact density.
Quick Metrology Summary
1 liter of Gypsum Plaster weighs approximately 1.2 kilograms (or 1200 grams) at standard room temperature. Because mass equals volume multiplied by density (\(m = V \times \rho\)), multiplying volume in liters by 1.2 gives the exact mass in kg.
Gypsum Plaster: Weight per Litre Explained
Gypsum Plaster has a density of 1.2 kg/L, which makes it 20% heavier than water. Dry gypsum plaster powder has a bulk density of 1.2 kg/L. Mixed with water it sets harder and denser.
When You Need This Conversion
Wall and ceiling skimming, moulding and casting, and ordering bags per room.
What Changes the Density
Lightweight plasters with perlite are around 0.8–1.0 kg/L. Cured plaster is about 0.7–1.2 depending on porosity.
How it works
Enter the litres of gypsum plaster
Type the volume in litres. The calculator is preset to Gypsum Plaster at 1.2 kg/L.
Switch direction if needed
Flip to kilograms → litres to find how much space a given weight of gypsum plaster takes up.
Read the result
See kilograms, pounds, millilitres and gallons. Each litre adds 1.2 kg.
How to Convert Liters of Gypsum Plaster to Kilograms
Dry gypsum plaster powder has a bulk density of 1.2 kg/L. Mixed with water it sets harder and denser. To convert, multiply the volume in litres by 1.2. To go the other way, divide the weight in kilograms by 1.2.
kg = Litres × 1.2
L = kg ÷ 1.2
1 L → 1.2 kg
10 L → 12 kg
100 L → 120 kgExample
Convert 5 litres of gypsum plaster to kilograms: 5 × 1.2 = 6 kg, or 13.23 lb. Reversed: 6 kg ÷ 1.2 = 5 L.
Worked examples
| Scenario | Calculation | Result |
|---|---|---|
| 1 L of gypsum plaster | 1 × 1.2 kg/L | 1.2 kg |
| 5 L of gypsum plaster | 5 × 1.2 kg/L | 6 kg |
| 20 L of gypsum plaster | 20 × 1.2 kg/L | 24 kg |
| 100 L of gypsum plaster | 100 × 1.2 kg/L | 120 kg |
| 10 kg of gypsum plaster (reverse) | 10 ÷ 1.2 kg/L | 8.33 L |
Conversion reference
| Litres | Kilograms | Pounds | US gallons |
|---|---|---|---|
| 0.25 L | 0.3 kg | 0.66 lb | 0.07 gal |
| 0.5 L | 0.6 kg | 1.32 lb | 0.13 gal |
| 1 L | 1.2 kg | 2.65 lb | 0.26 gal |
| 2 L | 2.4 kg | 5.29 lb | 0.53 gal |
| 5 L | 6 kg | 13.23 lb | 1.32 gal |
| 10 L | 12 kg | 26.46 lb | 2.64 gal |
| 20 L | 24 kg | 52.91 lb | 5.28 gal |
| 50 L | 60 kg | 132.28 lb | 13.21 gal |
| 100 L | 120 kg | 264.55 lb | 26.42 gal |
Quick facts
- 1 litre of gypsum plaster weighs 1.2 kg (1200 g), which is 20% heavier than water.
- 1 kg of gypsum plaster fills 0.833 litres (833 mL).
- 1 m³ (1,000 L) of gypsum plaster weighs 1200 kg.
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Read articleFrequently asked questions
25 ÷ 1.2 ≈ 20.8 litres of dry powder.
About 1,200 kg.
1 litre of gypsum plaster weighs 1.2 kg (1200 grams, or 2.65 lb), using a density of 1.2 kg/L.
1 kg of gypsum plaster is 0.833 litres. Divide the weight by the density: 1 ÷ 1.2 = 0.833.
Multiply the volume by 1.2. For example, 10 litres of gypsum plaster is 12 kg and 50 litres is 60 kg.
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