For the past few months I've been building CalcMora — a free
online calculator site. No ads, no paywalls, no sign-up required.
Just fast, accurate tools that work on any device.
Why I built it
Most calculator sites are cluttered, slow, or show you a number
with zero explanation. I wanted something cleaner — tools that
show you the formula, a worked example, and an FAQ so you actually
understand your result.
What's live right now
- 💰 Finance — loans, mortgage, salary, tax, investments
- ❤️ Health — BMI, calories, body fat, protein, pregnancy
- 🧮 Math — percentages, fractions, geometry, GPA
- 🔁 Converters — length, weight, temperature, currency
- 📅 Date & Time — age, countdowns, days between dates
- ✨ Everyday Life — tips, bills, travel, shopping
- 🏆 Sports — performance, stats, planning tools
Tech stack
Astro — static site generator
Cloudflare Pages — hosting and CDN
Vanilla JS — all calculators, no frameworks
Schema.org — structured data on every tool
The goal
3,000+ tools. Building one new calculator every day.
Every tool has competitor gap analysis, unique features, 1,000+
words of original content, and full Schema markup.
Try it
👉 calcmora.com — completely free, forever.
Would love feedback from the DEV community — what calculators
do you wish existed? Drop them in the comments 👇
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