사용 방법
세 단계로 더 정확하게 계산하세요.
- 01
Enter the room dimensions and subtract openings.
- 02
Set coats and the coverage printed on your paint can.
- 03
Compare waste allowances before buying.
홈·DIY
페인트 계산기
Estimate wall area, paint volume, can count, and total paint cost—with doors, windows, coats, and waste included.
01
값을 입력하세요
입력하는 즉시 결과가 바뀝니다.
핵심 공식
결과에 사용한 계산식
Paint needed = (net wall area × coats × (1 + waste rate)) ÷ paint coverage자주 묻는 질문
결정 전에 확인하세요.
How much extra paint should I buy?
A 10% allowance is a practical starting point for normal walls. Detailed trim, textured surfaces, repairs, and strong color changes may require more.
Does this include the ceiling?
Not automatically. Add the ceiling as a separate rectangular surface or include its area by increasing the calculated paintable area.
Why can the can count look high?
The calculator rounds up to whole cans so the estimate reflects what can actually be purchased.