Home Calculators & Converters
Save to PinterestHome improvement projects live and die by accurate measurements. Ordering too little paint or miscalculating square footage for flooring can mean extra trips to the store or wasted material. This collection covers the five home measurement tools that come up most often: square footage calculator, cubic feet, paint coverage estimator, inches to centimeters, and feet to meters. Conversions use exact SI definitions (1 inch = 2.54 cm, exact). Paint coverage estimates are presented as a range (350–400 sq ft per gallon) consistent with industry-standard product specifications, with an explanation of the factors that affect real-world coverage.
All Home Tools
Square Footage Calculator
Calculate square footage from length and width in feet or inches. Instant results for rooms, flooring, tile, and paint projects.
Cubic Feet Calculator
Calculate cubic feet from length, width, and height. Use for storage units, moving boxes, mulch, gravel, and concrete volume estimates.
Paint Coverage Calculator — How Much Paint Do I Need?
Calculate how much paint you need. Enter room dimensions and get gallons needed, with a high and low estimate based on industry-standard coverage (350–400 sq ft/gallon).
Inches to Centimeters Converter
Convert inches to centimeters instantly. 1 inch = 2.54 cm (exact, by international definition). Includes quick reference table and reverse cm-to-inches conversion.
Feet to Meters Converter
Convert feet to meters instantly. 1 foot = 0.3048 m (exact). Includes quick reference table, practical room measurement examples, and reverse meters-to-feet conversion.