OhMyCalc

Flooring Calculator

Calculate flooring material needed including waste allowance for laminate, hardwood, or tile.

How to Use the Flooring Calculator

  1. Enter room length and width.
  2. Set the waste percentage.
  3. Click Calculate.
  4. Order based on the flooring needed value.

Quick Reference

FromTo
Straight lay5–10% waste
Diagonal lay10–15% waste
Herringbone15–20% waste
10 m² room~11 m² at 10% waste
20 m² room~22 m² at 10% waste
Standard laminate box~2.0–2.5 m²

Use Cases

Formula

Area = Length × Width. Flooring = Area × (1 + Waste% / 100).

Frequently Asked Questions

How much waste for laminate?
5–10% for straight lay, 10–15% for diagonal.
Does this work for tile?
Yes, enter the same room dimensions and adjust waste % accordingly.
Is it free?
Yes, all calculators are completely free.