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About CalcBit
CalcBit is India's most comprehensive free calculator platform. 100+ tools covering finance, tax, salary, business, health, and unit conversions — all 100% private, always free.
100+
Free calculators
100K+
Monthly users
99.9%
Accuracy rate
6+
Expert guides
Our story
Financial calculators in India are either inaccurate, bloated with ads, or require personal information just to show a basic result. We built CalcBit to be different.
Every calculator uses bank-grade formulas, processes everything in your browser (zero data leaves your device), and is completely free — no signups, no limits, no hidden charges.
Today, CalcBit serves 100,000+ users monthly with 100+ calculators covering everything from home loan EMIs to income tax, GST, SIP planning, and unit conversions.
Every calculation runs in your browser. We never see, store, or share your financial data.
Our formulas match the exact standards used by Indian banks, tax authorities, and financial institutions.
No clutter, no jargon, no ads. Clean interface designed for instant understanding.
No premium tiers, no paywalls, no signups. Every calculator is completely free, forever.
Standards
All calculators reviewed quarterly. Tax slabs updated within 48 hours of government announcements.
Every calculator page includes the mathematical formula used, step-by-step methods, and worked examples.
All guides and articles verified against official sources including Income Tax Department, RBI, and SEBI.