ganak.appConstruction Calculators
27 calculators · Updated Apr 2026
Estimate materials and measurements for construction projects. Calculate concrete, asphalt, and gravel quantities, plan fencing, and measure square footage for rooms and walls.
Popular in Construction
Concrete Calculator
Estimate concrete volume in yards, feet, or meters for slabs, footings, walls, and columns. Includes bag count and cost estimates.
Square Footage Calculator
Free square footage calculator for rooms, walls, and irregular shapes. Calculate area in sq ft, sq m, sq yd, and acres with waste factor and cost estimation.
Fence Calculator
Estimate fence materials, posts, pickets, and total cost. Compare wood, vinyl, chain link, and metal fencing with instant DIY or professional cost breakdown.
All Construction Calculators
Asphalt Calculator
Estimate asphalt tonnage, volume, and cost for driveways, roads, and parking lots. Supports hot mix, warm mix, cold mix, and porous asphalt.
Gravel Calculator
Estimate gravel tonnage, volume in yards, and cost for driveways, landscaping, and drainage. Supports pea gravel, crushed stone, river rock, and more.
Soil Calculator
Estimate soil volume in cubic yards or meters for gardens, raised beds, and landscaping. Includes bag count, weight, and cost for topsoil and more.
Topsoil Calculator
Calculate how much topsoil you need in cubic yards, tons, and bags. Supports 10 topsoil types, 9 project presets, 3 area shapes, and cost estimation for lawns, gardens, raised beds, and landscaping.
Insulation Calculator
Calculate how much insulation you need. Supports 10 insulation types (fiberglass, cellulose, spray foam, rigid board), 8 project areas with R-value presets, framing deductions, and cost estimation.
Sand Calculator
Estimate how much sand you need in tons, cubic yards, and bags. Supports 12 sand types, 3 area shapes, project presets, and cost estimation for sandboxes, pavers, pools, and more.
Room Square Footage Calculator
Calculate room or floor area in square feet for flooring, carpet, tile, and paint projects. Enter length and width to get instant area with conversions.
Multi-Room Square Footage Calculator
Calculate total square footage for multiple rooms at once. Add rooms with quantities for apartments or commercial spaces. Combined area and cost.
Wall Area Calculator
Calculate wall area for painting or wallpaper, subtracting doors and windows. Get material estimates with waste factor for paint coverage and wallpaper rolls.
Shapes Area Calculator
Calculate area for irregular shapes: rectangles, circles, rings, triangles, trapezoids, sectors, and parallelograms. Great for roofing, landscaping, and decks.
Brick Calculator
Free brick calculator. Enter wall dimensions to get brick count, mortar, sand, weight, and cost. Supports 8 brick sizes with waste factor and openings.
Concrete Block Calculator
Free concrete block calculator. Estimate block count, mortar, grout fill, wall area, and material cost for CMU walls with openings, waste, and imperial or metric units.
Paint Calculator
Free paint calculator. Enter room or house dimensions to get exact gallons needed, quart breakdown, primer estimate, and cost for any surface.
Mulch Calculator
Estimate mulch volume in cubic yards, feet, or meters for gardens and landscaping. Bag count, weight, and cost for hardwood, cedar, pine bark, and more.
Septic Tank Size Calculator
Free septic tank size calculator. Enter bedrooms or occupants to get recommended tank capacity, dimensions, pumping schedule, and drainfield size.
Stair Calculator
Calculate stair dimensions instantly. Get riser height, tread depth, stringer length, stair angle, and building code compliance with an interactive diagram.
Rebar Calculator
Free rebar calculator. Estimate rebar quantity, spacing, weight, and cost for slabs, footings, and walls. Instant results with bar size reference chart.
Roofing Calculator
Free roofing calculator. Estimate roof area from building dimensions and pitch for gable, hip, flat, and shed roofs. Get roofing squares, material quantities with waste factor, rafter length, and cost estimate for shingles, metal, tile, slate, and wood shakes.
Solar Panel Calculator
Free solar panel calculator. Estimate system size, number of panels, installation cost, payback period, and 25-year savings with monthly production chart.
Drywall Calculator
Free drywall calculator. Enter room dimensions to get sheets needed, joint compound, tape, screws, weight, and cost. Supports 4 sheet sizes with waste factor.
Pool Volume Calculator
Free pool volume calculator for rectangular, round, oval, kidney & L-shaped pools. Get gallons, liters, cubic feet with variable depth. Works for above-ground & in-ground.
Stone Calculator
Free stone calculator. Estimate crushed stone, river rock, or gravel in tons, cubic yards, and bags. 12 stone types, 3 shapes, waste factor, and cost estimator.
Flooring Calculator
Free flooring calculator. Calculate square footage, boxes needed, and cost for 12 flooring types including laminate, vinyl plank, hardwood, and tile.
Pipe Weight Calculator
Free pipe weight calculator for round, square, and rectangular pipes. 17 materials, NPS schedule lookup, weight per meter and foot, water weight, and cost estimate.
Why Use Construction Calculators?
Ordering too much material wastes money; ordering too little delays your project. These calculators estimate exact quantities for concrete, asphalt, gravel, and fencing based on your project dimensions. You also get square footage calculations for rooms, walls, and multi-room layouts — essential for flooring, painting, and renovation planning.