All Construction Calculators

Calculate concrete volume, bags needed, and cost for slabs, footings, and walls

Calculate rebar quantity, spacing, and weight for concrete reinforcement

Calculate board feet, studs needed, and lumber costs for framing projects

Calculate drywall sheets, joint compound, tape, and screws needed

Calculate paint coverage, gallons needed, and cost for interior/exterior projects

Calculate flooring materials needed including waste factor and cost

Calculate roofing shingles, squares, and materials needed

Calculate gravel volume, tons, and cost for driveways and paths

Calculate sand volume, tons, and cost for pavers and leveling

Calculate bricks and mortar needed for walls and projects

Calculate concrete blocks (CMU) and mortar for walls

Calculate insulation rolls, R-value, and cost

Calculate tiles, thinset, and grout needed for floors and walls

Calculate vinyl, wood, or fiber cement siding squares and cartons

Calculate stucco bags, sand, and lath for exterior walls

Calculate mulch cubic yards and bags for landscaping beds

Calculate topsoil volume and tons for lawns and gardens

Calculate plywood or OSB sheets needed for sheathing and subfloors

Calculate linear feet of trim, baseboard, and crown molding

Calculate wallpaper rolls needed including pattern repeats

Calculate carpet square yards and rolls for flooring projects

Calculate stone veneer flats and corners for walls and fireplaces

Calculate pavers, base material, and sand for patios/walkways

Estimate sod rolls or pallets needed for new lawns

Plan tile layout, centering, and cuts for rooms

Calculate exact volumes for two-part paint and epoxy mixes

Estimate new home construction cost by square footage and quality

Calculate kitchen remodel budget based on size and finish level

Estimate bathroom renovation costs for powder, full, or master baths

Calculate the cost of adding a new room, bedroom, or garage

Estimate whole-house or partial renovation costs

Calculate Return on Investment for home improvements and energy upgrades

Compare costs for concrete, asphalt, or gravel driveways

Estimate costs for paver or concrete patios

Estimate fence installation cost including materials and labor

Estimate fence installation cost including materials and labor

Estimate total deck building cost including materials and labor

Calculate room area and total square footage for any space

Estimate solar panel system size, output, and offset percentage

Estimate heat loss/gain and energy cost through windows

Calculate number of plants needed for garden beds based on spacing

Calculate critical root zone radius for tree preservation

Verify square corners using the 3-4-5 triangle method

Calculate length of curved walls, paths, or features

Calculate area, circumference, and diameter of circles

Convert fractions (e.g., inches) to decimals and vice versa

Estimate minimum wall space for full door swing clearance

Determine roof pitch ratio and angle from rise and run

Calculate miter and bevel saw settings for crown molding

Estimate project duration for common tasks by skill level

Estimate total deck building cost including materials and labor

Calculate beam reactions, shear, and moment for simple spans

Estimate vertical load capacity for wood, steel, and concrete columns

Calculate materials for block, timber, or concrete retaining walls

Estimate total roof dead and live loads (snow/wind)

Calculate common rafter lengths based on run and pitch

Calculate rise, run, and stringer length for staircases

Calculate roof truss geometry and chord lengths

Estimate footing size based on load and soil bearing capacity

Calculate total design load for decks (Live + Dead)

Determine recommended foundation depth by climate zone

Calculate stud count for walls based on length and spacing

Calculate baluster count and spacing for code-compliant railings

Calculate required wire size based on amps, voltage, and distance

Calculate voltage drop percentage and end voltage for long runs

Check NEC conduit fill compliance for various wire types and sizes

Determine wire ampacity after derating for temperature and bundling

Calculate lumens and light fixtures needed for any room type

Convert Watts to Amps and Volts for single and three-phase circuits

Calculate energy usage and cost for any appliance

Calculate multipliers and shrink for offset bends

Calculate kVA rating for single and three-phase transformers

Estimate battery capacity needed for UPS or solar storage

Convert between Watts, Volts, Amps, VA, and HP

Calculate Full Load Amps for single and 3-phase motors

Determine circuit breaker size for continuous/non-continuous loads

Calculate electrical box fill to prevent overcrowding

Size Grounding Electrode Conductors (GEC) per NEC 250.66

Estimate available short circuit current at transformer secondary

Calculate cable tray fill ratio and sizing

Calculate kVAR needed for Power Factor Correction

Compare energy cost savings of LED bulbs vs incandescent

Estimate generator wattage needed for home or job site

Calculate water volume and weight in pipes

Calculate GPM based on pipe diameter and velocity

Calculate thermal expansion for PVC, Copper, and PEX

Estimate required pump HP based on vertical lift

Calculate recommended tank size or tankless GPM

Estimate heating and cooling load for rooms

Calculate required CFM based on room volume and ACH

Estimate round duct diameter for desired airflow

Estimate AC unit size (tons) based on square footage and zone

Calculate Air Changes per Hour (ACH) from fan rating

Calculate pressure drop and head loss in pipes

Estimate septic tank size based on bedrooms and occupancy

Calculate potential rainwater collection from roof area

Estimate water usage for lawns and gardens

Estimate natural gas pipe size based on BTU load

Estimate heat pump size for heating and cooling

Calculate Net Free Area (NFA) for attic ventilation

Verify square corners using the 3-4-5 triangle method

Calculate length of curved walls, paths, or features

Calculate area, circumference, and diameter of circles

Convert fractions (e.g., inches) to decimals and vice versa

Estimate minimum wall space for full door swing clearance

Determine roof pitch ratio and angle from rise and run

Estimate project duration for common tasks by skill level