关于本计算器
Estimate building materials: concrete volume and 50 kg bags, paint liters by area and coats, tile count with 10% waste.
建材估算
混凝土体积与袋数、油漆升数、瓷砖数量（含损耗）。
体积 (m³)2.00 m³
所需袋数 (50 kg)61
常见问题
How many bags per m³?
About 30 bags of 50 kg per cubic meter (0.033 m³ per bag).
Paint coverage?
Roughly 10 m² per liter per coat on prepared surfaces.
Why +10% tiles?
Cutting waste and future repairs; round up to full boxes in store.