The most complete free calculator platform — standard & scientific math, live currency & crypto rates, BMI, loan EMI, GPA, investment returns, unit conversion and 30+ more tools. All run in your browser. Zero data collected.
Are you ready to challenge your brain? Try our 10-Question Math & General Knowledge IQ Test. This test is designed using globally accepted psychometric standards including time constraints and standard bell curve score distribution.
Choose any tool from the sidebar. All calculations run instantly in your browser — no data is ever sent anywhere.
Purpose-built tools with live data feeds, professional-grade formulas, and a design that gets out of your way.
The currency converter fetches real-time rates from the European Central Bank via Frankfurter API (no key required) with automatic fallback to the fawazahmed0 CDN. Crypto prices are live from CoinGecko covering 40+ coins with 24-hour change data. No stale numbers, ever.
30+ functions: all trig (degrees), inverse trig, hyperbolic, log₁₀, ln, log₂, roots, powers, factorial, floor, ceiling, absolute value, constants π, e, τ.
Designed with equal care in both modes. Uses Plus Jakarta Sans + Fraunces serif for editorial elegance. Preference persists across visits.
Complete keyboard control on the standard and scientific calculators. Numbers, operators, Enter, Backspace and Escape all mapped natively.
Mobile-first layout with touch-optimised button sizes. Works beautifully from 320px phones to 4K monitors without any app install.
Every calculation runs in your browser. No inputs, results or history are ever sent to any server. The password generator uses the Web Crypto API.
GPA calculator (4.0 scale with credit hours), grade calculator with weighted assignments, quadratic solver, statistics, matrix operations, triangle solver.
EMI, investment/CAGR with SIP, mortgage, salary/CTC breakdown, retirement corpus planner, discount, GST/VAT, tip splitter — all in one tab.
Number base converter (DEC/BIN/OCT/HEX/B36), binary arithmetic (AND/OR/XOR/NOT), Ohm's Law, color converter (HEX↔RGB↔HSL), matrix calculator.
Pick from 40 calculators in the left sidebar, organised by category. Use the search box to find any tool instantly.
Type via buttons, keyboard (standard/scientific), or fill in the form fields. Currency and crypto tools auto-fetch live rates.
Results appear instantly in your browser. The standard calculator keeps a scrollable history. No page reloads.
Jump between all 40 tools at any time via the sidebar — no lost state, no waiting, no account required.
Expert tutorials, mathematical breakdowns, and actionable guides for everyday tools.
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No account. No downloads. No data stored. Just calculate.
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