사용 방법
세 단계로 더 정확하게 계산하세요.
- 01
Measure the slab length, width, and finished depth.
- 02
Add waste for uneven subgrade, spillage, and form variation.
- 03
Use your bag's stated yield for the closest estimate.
홈·DIY
콘크리트 계산기
Calculate slab volume, order volume, ready-mix quantity, bag count, and budget in metric or US customary units.
01
값을 입력하세요
입력하는 즉시 결과가 바뀝니다.
핵심 공식
결과에 사용한 계산식
Concrete volume = length × width × depth; order volume = volume × (1 + waste rate)자주 묻는 질문
결정 전에 확인하세요.
How much extra concrete is sensible?
For a regular slab, 5–10% is common. Irregular excavation or uncertain depth can require more.
Why does bag yield matter?
Bag weight alone does not guarantee the same mixed volume. Use the yield printed by the manufacturer.
Can I use this for structural work?
Use it for preliminary quantity planning only. Structural dimensions and mix specifications should come from the project design and local requirements.