About NicheCalc

NicheCalc builds free, purpose-built calculators for the construction trades. We exist because most online calculators are generic, slow, ad-laden tools that weren't designed by anyone who's ever stood on a job site.

The Problem

You're on-site, phone in hand, and you need to figure out how many cubic yards of concrete a 24x30 slab requires. You search "concrete calculator," and what do you get? A bloated page that takes 10 seconds to load, asks you to sign up, and buries the calculator beneath four paragraphs of SEO text and a wall of ads.

That's what we're fixing.

How NicheCalc Is Different

Every calculator on NicheCalc is built for a specific trade with real formulas, real material costs, and real results. Here's what makes us different:

  • Mobile-first. Every calculator is designed to work on your phone with big inputs and fast results. Because that's where contractors actually use them — from the truck, from the site, from the supply store parking lot.
  • Trade-specific formulas. Our concrete calculator knows about waste factors, different mix strengths, and bag counts. Our roofing calculator handles hip and ridge calculations. These aren't generic volume calculators — they're tools built for each trade.
  • Free, no sign-up. Core calculators are always free and don't require an account. Open the page, enter your dimensions, get your answer.
  • Fast. We target under 2 seconds for every page load. No heavy frameworks, no unnecessary JavaScript. Server-rendered pages that load instantly.

Our Categories

We cover seven major trade categories — and we're expanding:

  • Construction — Concrete, framing, foundation, and structural calculators
  • Landscaping — Mulch, gravel, soil, and ground cover calculators
  • Plumbing — Pipe sizing, water flow, and fixture calculators
  • Electrical — Wire gauge, load, circuit breaker, and voltage drop calculators
  • HVAC — BTU, duct sizing, airflow, and heat load calculators
  • Roofing — Shingle, underlayment, ridge cap, and material calculators
  • Home Improvement — Paint, flooring, drywall, tile, and general project calculators

NicheCalc Pro

For contractors who want to save and share their calculations, NicheCalc Pro adds PDF exports, project saving, and an ad-free experience for $9.99/month. It's optional — the calculators work fine without it.

For Developers & Businesses

We're building an embeddable widget system and a calculator API so other websites and apps can use our calculation engines. If you're a home improvement blog, contractor marketplace, or building supply store, these tools will be available soon.

Contact Us

Questions, feedback, or partnership inquiries? Get in touch.