OpsVault Tech/Tools/Calculators
31 Free Calculators

31 Free Contractor Calculators

Real material math for real jobs. No signup, no catch.

Concrete

Concrete Calculator

Enter total sq ft for odd-shaped slabs or foundations, or use L×W for simple rectangles. Gets you to CY, price per yard, and full material list.

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Roofing

Roofing Calculator

Roof squares, shingle bundles, underlayment rolls, flashing, ridge cap, and drip edge — adjusted for pitch. Enter roof pitch (X:12) for automatic slope factor. Includes ice & water shield, starter strip, and fascia/soffit repair.

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Fencing

Fencing Calculator

Post count, rails, pickets or panels, concrete bags, corner/end post premium, gate hardware sets, post caps, and gate hardware for any fence run.

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Painting

Painting Calculator

Wall sqft minus doors and windows, paint gallons, primer, trim, stain blocker (water/smoke damage), door jambs, cabinet painting, and labor — by coat count.

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Plumbing

Plumbing Calculator

Fixtures, pipe by material type, fittings, valves, angle stops, clean-outs, and labor — with per-material rate lookups. Use the pipe material factor to automatically scale all pipe rates (1=PVC, 1.4=CPVC, 2.2=PEX, 3.5=Copper).

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Electrical

Electrical Calculator

Wire by gauge, outlets, switches, breakers, fixtures, panel upgrade, AFCI breakers, conduit runs, disconnect switches, subpanel, and labor hours.

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HVAC

HVAC Calculator

Equipment by system type, ductwork, thermostat, line set, refrigerant, condensate drain, disconnect switches, and installation labor for any HVAC job. Equipment cost auto-scales by tonnage when no override is provided.

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Landscaping

Landscaping Calculator

Sod, mulch cubic yards with 10% waste, shrubs, trees, grading, stump removal, soil amendment, tree stakes, edging, and haul away.

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Drywall

Drywall Calculator

Sheet count with 8% waste, mud buckets, tape rolls, screw boxes, corner bead, texture, drywall primer, fire-rated (Type X) premium, moisture-resistant premium, and high-ceiling labor premium.

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Flooring

Flooring Calculator

Material with 10% waste by floor type, underlayment, adhesive, transitions, moisture barrier (slabs/basements), leveling compound, grout sealer, and installation labor.

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Carpentry

Carpentry Calculator

Trim, baseboard, crown molding, doors, hardware, window trim kits, shelving, stair treads, and custom carpentry hours.

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Masonry

Masonry Calculator

Block, brick, or stone by type, mortar bags, sand, rebar, capstone, scaffolding rental, acid wash, lintels, repointing, and sealer.

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Tile

Tile Calculator

Tile with 10% waste, backer board, thinset bags, grout bags by type, waterproofing membrane (showers), uncoupling membrane, edge trim, grout sealer, and epoxy grout labor premium.

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Demolition

Demolition Calculator

Demo labor, soft strip, structural hours, concrete saw-cutting, dumpsters, haul loads, disposal tons, hazmat testing and abatement, and salvage credit.

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Decking

Decking Calculator

Deck sqft, boards with 10% waste, joists, beams, posts, footings, ledger board, ledger flashing, lateral bracing, hidden fasteners, railing, stairs, and installation labor.

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General

General Contractor Calculator

Full GC estimator — materials by category, self-perform labor, 9 sub slots, permits, insurance, contingency, and more.

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Excavation

Excavation Calculator

Cubic yards excavated with soil factor, truck loads, equipment hours, operator and labor costs, import fill, dewatering, compaction testing, utility locate fees, and dump fees.

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Insulation

Insulation Calculator

Blown-in bags, batt rolls, spray foam (open or closed-cell), vapor barrier, air sealing, vent baffles, and old insulation removal — with labor.

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Siding

Siding Calculator

Siding squares with waste by type, house wrap (material + labor), water table/starter strip, rigid insulation board, corners, J-channel, trim, caulk, and installation labor.

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Gutters

Gutter Calculator

Gutter LF, downspouts, leaf guard/screens, hangers, end caps, sealant, splash blocks, downspout extensions, rotted fascia replacement, and installation labor.

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Pool

Pool Installation Calculator

Pool volume in gallons, excavation CY, shell/liner, equipment package, coping/edge material, decking, fencing, bonding/grounding, chemical startup, safety drains, and all-in labor.

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Pressure Washing

Pressure Washing Calculator

Per-surface sqft pricing for house, driveway, deck, fence, roof, and patio — plus mold/algae treatment, concrete sealer, gutter cleaning, chemicals, equipment, and labor.

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Solar

Solar Panel Calculator

Panel materials, inverter (with type factor for string vs micro), racking, electrical, roof prep, structural engineering, utility interconnect, permits, labor, and estimated incentive savings by system size.

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Irrigation

Sprinkler & Irrigation Calculator

Pipe LF by zone and type, rotor heads, pop-up spray heads, valves, valve boxes, controller, backflow preventer, trenching, winterization blowout, and installation labor.

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Tree Service

Tree Service Calculator

Tree removal by trunk diameter / height tier, stump grinding, trimming, log sectioning, rigging, debris hauling, chipping, equipment, and labor — with emergency/storm premium multiplier.

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Welding

Welding Calculator

Consumables (rod/wire with scrap factor, gas, discs), steel material, cutting, grinding, layout and welder labor, equipment hours, and NDT/weld testing.

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Window Cleaning

Window Cleaning Calculator

Per-window rates scaled by building height, screens, track cleaning, hard water treatment, lift rental, and labor.

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Windows & Doors

Window & Door Calculator

Window and door units by size type, rough opening adjustments, flashing, shims/blocking, trim, exterior caulk/weatherstripping, haul away, labor per unit, sliding doors, skylights, and sealing.

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Garage Door

Garage Door Calculator

Door units by size and style, openers, keypads, spring replacements, cable/roller replacement, weatherstripping, threshold seal, track repair, and installation labor.

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Septic

Septic System Calculator

Septic tank by size, leach field by perk rate, percolation test, existing tank removal, risers/access ports, effluent filter, pipe, gravel, distribution boxes, permits, inspection, and labor.

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Cabinetry

Cabinet Installation Calculator

Base and upper cabinet LF pricing, RTA assembly labor, countertop with cut-outs (sink/cooktop), sink install, backsplash, island, hardware, filler strips, shimming, and labor.

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Want these connected to your estimates?

OpsVault CRM turns any calculator result into a real estimate — with line items, markups, and a PDF your client can sign.

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