CalcBright is a collection of 160+ free calculators and converters – mortgage, loan, take-home pay for 166 countries, sales tax & VAT, BMI, GPA, dates, units, live currency and gold prices. Every tool explains its formula with a worked example, updates instantly, and pre-selects your country and currency. No sign-up. Developers and AI assistants can use every calculator through a free API and MCP server.

Hi Product Hunt 👋 Maker here.

Finding the right calculator usually means several searches, cluttered pages, and tools that only work for one country. We built CalcBright to fix that: 160+ free calculators in one place that adapt to where you are.

What's different:

• Take-home pay for 166 countries (income tax + social contributions from official sources) and VAT for 177

• Gulf & Arab labour law: UAE gratuity plus Saudi, Egypt, Jordan and Morocco end-of-service

• Every result shows the formula and a worked example, no black boxes

• Fully in Arabic, with more languages rolling out; your country, currency and units are pre-selected

• Live data: exchange rates, gold/silver prices and official inflation

• Private: calculations run in your browser, no sign-up, no app

• Free embeds, a JSON API and an MCP server so AI assistants can use the calculators directly

We'd love your feedback: which calculator should we add next, and did any number look off for your country?

Launch-day extra: we've just opened a blog with data reports built from the calculators: take-home pay in 166 countries, VAT rates in 177 countries, and end-of-service rules across 9 Arab countries (also in Arabic). calcbright.com/blog