CalcRafter

Free browser-based calculators for construction material quantities and typical costs, with monthly US concrete and gravel prices from BLS data. It runs in the browser with no account, download or ads. It doesn't do takeoffs from drawings or structural design, and prices are national averages, so confirm local quotes before committing. The cost calculators show typical installed prices per square foot for concrete slabs, driveways, roofs, siding and fences. The concrete and crushed stone price pages update monthly from U.S. Bureau of Labor Statistics producer price indexes, anchored to NRMCA and USGS national averages.

CalcRafter Overview

CalcRafter is a free set of construction calculators for estimators, contractors and homeowners in the US. Enter your dimensions and it works out concrete in cubic yards, gravel and sand in tons, roofing squares and bundles, Hardie siding planks, fence posts and pickets, concrete blocks, rebar, topsoil, sod and insulation. Each page shows the formula it uses and lists its sources, so you can check the math by hand.

The cost calculators show typical installed prices per square foot for concrete slabs, driveways, roofs, siding and fences. The concrete and crushed stone price pages update monthly from U.S. Bureau of Labor Statistics producer price indexes, anchored to NRMCA and USGS national averages. Price history can be downloaded as CSV.

It runs in the browser with no account, download or ads. It doesn't do takeoffs from drawings or structural design, and prices are national averages, so confirm local quotes before committing.

CalcRafter is a free set of construction calculators for estimators, contractors and homeowners in the US. Enter your dimensions and it works out concrete in cubic yards, gravel and sand in tons, roofing squares and bundles, Hardie siding planks, fence posts and pickets, concrete blocks, rebar, topsoil, sod and insulation. Each page shows the formula it uses and lists its sources, so you can check the math by hand.

The cost calculators show typical installed prices per square foot for concrete slabs, driveways, roofs, siding and fences. The concrete and crushed stone price pages update monthly from U.S. Bureau of Labor Statistics producer price indexes, anchored to NRMCA and USGS national averages. Price history can be downloaded as CSV.

It runs in the browser with no account, download or ads. It doesn't do takeoffs from drawings or structural design, and prices are national averages, so confirm local quotes before committing.

CalcRafter Pricing

PRICING PLANS
Base Plan|null/Annually

CalcRafter Alternatives

See how CalcRafter stacks up against similar tools before you decide.

CalcShed

CalcShed is a free web-based calculator platform designed for construction, electrical, concrete, roofing, landscaping, and home improvement planning. It provides practical tools for estimating material quantities, dimensions, project costs, electrical values, loads, and other common job-site calculations. Each calculator uses transparent formulas, unit support, clear explanatory guidance, and source-backed methodology where applicable, helping homeowners, contractors, tradespeople, and students plan projects and check calculations more efficiently.

SlabCalc

A free suite of 34 concrete calculators plus AI tools for crack diagnosis and quote analysis — volume, bags, and cost.

Foam Concrete Mix Designer

The Foam Concrete Mix Designer runs the absolute volume method backwards from a target dry density to produce a full batch sheet. Built for engineers, precasters and contractors who specify or batch foam concrete and cellular lightweight concrete. Works in metric or US units, is free with no sign-up, and exports the batch sheet as CSV.

This page was created by the aec+tech community. Are you the owner?