Calculators for home improvement and garden projects.
Calculate what size furnace you need for your home. Determine the required BTU/h based on floor area, climate zone or outdoor…
Calculate elliptical arch dimensions: span, rise, semi-major and semi-minor axes, focal distance, string length for drawing,…
Calculate the angle between a ladder and the ground using the arctan formula. Find the ideal base distance with the 4:1 rule…
Calculate the total carpet area needed to cover a flight of stairs. Enter number of steps, riser height, tread run, stair…
Calculate how much deck stain you need. Enter floor area, optional railing with posts and balusters, steps, number of coats,…
Calculate carpet area and total cost for rectangular or circular carpets. Supports US Imperial (ft, sq yd) and Metric (m²)…
Calculate wainscoting panel dimensions, stile spacing, and end margins for any wall. Supports US Imperial (inches) and Metric…
Calculate the exact volume of epoxy resin needed to coat any rectangular or circular surface. Supports US Imperial (inches/feet,…
Estimate the heating power needed to keep your room warm. Calculate heat loss through walls, windows, doors, floor and ceiling.…
Calculate air changes per hour (ACH) for any room. Enter room dimensions or floor area plus height and your ventilation device…
Calculate how much sand you need for pavers. Supports US Imperial (ft, in) and Metric (m, cm) units, weight in lb/tons or…
Calculate number of stairs, stringer length, rise and run for any staircase. Supports US Imperial (inches) and Metric (cm)…
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