TradeCalc
92 free calculators for builders, contractors & DIY
TradeCalc launched on April 10, 2026.
What it does
TradeCalc is a free library of 92 construction and home improvement calculators — concrete, electrical (NEC 2023 compliant), HVAC, plumbing, framing, and more. Built for contractors and DIY builders who want instant answers without signups, popups, or ads blocking the tool. Includes the new 2026 stuff most sites miss: EV charger wire sizing, heat pump sizing, kitchen/bathroom remodel costs with current prices, and labor burden for contractors.
Calculate anything in seconds. 100+ free calculators for construction, finance, tax, health, legal, and unit conversions. No signup. No clutter. Instant results on any device.
100+ free calculators and tools for construction, finance, tax, legal, health, and everyday math. No signup. No clutter. Instant results on any device. TradeCalc started as a set of construction calculators built for contractors, electricians, plumbers, and DIY builders who needed fast, accurate answers on the job site. Since then, we have expanded into a comprehensive library of free tools covering finance, tax, legal, health, and everyday math — all designed with the same philosophy: give you the answer you need, instantly, with no friction. Every calculator on TradeCalc goes beyond spitting out a number. Our concrete slab calculator tells you how many bags to buy and whether ready-mix…from tradecalc.org
Does a similar job
all alternatives →
BuildCalc HubJun 2026 · thebuildcalchub.com · ▲4Free construction calculators for contractors and DIYers
TradeCalc — All In One Trades CalculatorMar 2026 · tradescalculator.lovable.appA construction calculator built for job sites not classrooms
CraftCalcSep 2026 · tool-1-pied.vercel.appFree trade-grade DIY & home improvement material calculators
Trade Tools - Free tool for ConstructionMay 2026 · pipesizecalculator.com · ▲3Pipe, concrete, electrical & tile calculators — free
More work this month
the category →
Endless lofi beats composed live in your browser, over pixel-art nights in Paris, Tokyo, New York, Hong Kong, Sydney, San Francisco and more. Free, no sign-up.
Work · 25d ago · loficities.com
Smooth Recorder▲257Mac screen recordings that look edited when you hit stop
Work · 19d ago · smoothrecorder.com
Work · 13d ago · readrare.com
Source: Product Hunt launch ↗
Launched alongside, April 2026
the whole month →
- AG
Thought the resources for GPU arch were lacking, so here we are
Life & fun · Apr 2026 · jaso1024.com
Built a ~9M param LLM from scratch to understand how they actually work. Vanilla transformer, 60K synthetic conversations, ~130 lines of PyTorch. Trains in 5 min on a free Colab T4. The fish thinks the meaning of life is food. Fork it and swap the personality for your own character.
AI · Apr 2026 · github.com
I made a laptop stand out of solid concrete, in the style of brutalist architecture, with themes of urbex and urban decay
Life & fun · Apr 2026 · sam-burns.com
With social media and now AI, its important to keep the indie web alive. There are many people who write frequently. Blogosphere tries to highlight them by fetching the recent posts from personal blogs across many categories. There are two versions: Minimal (HN-inspired, fast, static): https://text.blogosphere.app/ Non-minimal: https://blogosphere.app/ If you don't find your blog (or your favorite ones), please add them. I will review and approve it.
AI · Apr 2026 · text.blogosphere.app