Free tools
Contractor calculators that don't ask for your email.
Material takeoffs and pricing math, free. Every tool runs 100% in your browser — no signup, no paywall, nothing you type leaves your device.
Material calculators
Tile & Flooring Calculator
Room size → tiles, boxes, and waste.
Paint Calculator
Room size + coats → gallons of paint.
Concrete Calculator
Slabs & footings → cubic yards and bags.
Drywall Calculator
Room size → sheets, mud, tape, screws.
Decking Calculator
Deck size → boards, joists, fasteners.
Stair Calculator
Total rise → code-compliant steps.
Contractor business tools
All calculations happen client-side. We never see your numbers.
The fastest calculator of all: describe the job, get the estimate.
GreenlitBid turns a one-sentence description into a complete line-item estimate and a signed, paid proposal. 14-day free trial, no credit card.