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100+ free financial, tax, salary, business, health calculators, and unit converters. Trusted by thousands of Indians daily. Fast, accurate, and 100% private.
100+
Free Calculators
100,000+
Monthly Active Users
50,000+
Daily Calculations
99.9%
Accuracy Rate
How It Works
Designed for Indian users. No signup required. Just choose, enter, and calculate.
Browse 100+ tools across 7 categories
Adjust inputs with sliders or number fields
See accurate results with charts and breakdowns
Save PDF reports, share results, or compare scenarios
Categories
Find the right calculator for your needs across 7 comprehensive categories.
10+ tools
EMI, SIP, FD, PPF, RD & retirement planning
6+ tools
Income Tax, GST, HRA, TDS & Capital Gains
3+ tools
CTC breakup, in-hand salary & gratuity
3+ tools
Profit margin, break-even & GST profit
3+ tools
Percentage, age & discount calculations
3+ tools
BMI, BMR & daily calorie needs
5+ tools
Length, weight, area & currency converters
Most Popular
India's most used free calculators. Thousands of calculations daily.
Calculate your monthly EMI, total interest, and total payment for any loan. Free, instant, and bank-accurate EMI calculations.
Calculate your mutual fund SIP returns with step-up option. Free SIP planner for long-term wealth creation.
Calculate your Fixed Deposit maturity amount and interest earned. Free FD calculator with quarterly compounding for Indian banks.
Calculate your income tax under New and Old tax regimes. Free tax calculator for FY 2025-26 with 80C deductions and 87A rebate.
Calculate GST amounts for both inclusive and exclusive scenarios. Free GST calculator with CGST, SGST, and IGST breakdown.
Calculate your in-hand salary from CTC. Free salary breakup calculator with PF, professional tax, and income tax deductions.
Why Choose CalcBit
Everything you need for accurate financial calculations in one place.
Results update instantly as you type. No page reloads, no waiting.
All calculations use standard formulas trusted by Indian banks and financial institutions.
All calculations happen in your browser. We never store or share your data.
Generate premium PDF reports of your calculations for record-keeping.
Beautiful pie charts and amortization schedules to understand your finances.
Clean, intuitive interface designed for Indian users. No learning curve.
Testimonials
“CalcBit has the most user-friendly EMI calculator I've used. The amortization schedule is incredibly detailed.”
Rajesh K.
Home Loan Borrower
“I use CalcBit daily for GST calculations. It's accurate and saves me hours of manual work.”
Priya S.
Small Business Owner
“The SIP calculator with step-up feature helped me plan my retirement. Highly recommended for Indian investors.”
Amit V.
Mutual Fund Investor
FAQ