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Calculate illuminance (foot-candles) at a surface from ...
Convert between lumens, watts, and luminous efficacy. Use ...
Calculate total lumens needed and number of light fixtures ...
Estimate water heater tank size or first-hour rating ...
Calculate rolls of wallpaper needed for a room. Use this ...
Calculate vinyl siding panels and squares needed. Use this ...
Calculate minimum ventilation CFM for a space based on area ...
Calculate U-value (thermal transmittance) from R-value and ...
Calculate number of tiles needed for a floor or wall. Use ...
Calculate number of wall studs needed for a framed wall. ...
Estimate stair risers, tread depth, and stair run from ...
Calculate square footage from length and width. Use this ...
Calculate spray foam board-feet needed for a surface. Use ...
Calculate squares of siding needed to cover exterior walls. ...
Calculate room area, volume, and perimeter from dimensions. ...
Estimate BTU capacity needed to heat or cool a room. Use ...
Estimate roofing squares, shingles, and material needs. Use ...
Calculate roofing squares and bundles of shingles needed. ...
Calculate roof pitch, angle, and slope multiplier from rise ...
Calculate the weight of rebar by bar size and length. Use ...
Calculate linear feet of rebar needed for a concrete slab. ...
Calculate ramp length, slope ratio, and ADA compliance for ...
Calculate common rafter length from run and pitch. Use this ...
Calculate BTU output needed from a radiator for a given ...
Calculate concrete needed to set fence or deck posts in ...
Calculate number of plywood sheets needed to cover an area. ...
Calculate bedding sand needed under pavers. Use this free ...
XTRAW Tools
Free calculators, converters, generators, and simple apps for everyday decisions.
XTRAW Tools
Free calculators, converters, generators, and simple apps for everyday decisions.