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Formula-backed calculators for money, tax, loans, health and engineering – with charts, saved scenarios and plain-language explanations built for Indian users.
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- 750+
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- 10M+
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Popular calculators
The tools people open every day for loans, investing, tax and health.
EMI Calculator
Plan monthly loan outflow with amortization and smart savings suggestions.
SIP Calculator
Project long-term compounding with step-up SIP and goal-based planning.
Income Tax Calculator
Compare old and new regimes with deductions and surcharge support.
GST Calculator
Add or remove GST instantly with CGST, SGST, and IGST splits.
Home Loan EMI
Estimate housing EMIs, interest burden, and prepayment savings.
FD Calculator
Check fixed-deposit maturity values and interest earned at a glance.
BMI Calculator
Track body mass index and understand healthy weight ranges.
CAGR Calculator
Measure annualized growth for investments, revenue, and savings.
Salary Calculator
Estimate in-hand salary, CTC breakup, PF, and tax effect.
Crypto Tax
Evaluate 30% flat tax and TDS impact on digital asset gains.
FIRE Calculator
Model financial independence goals using inflation and withdrawal rates.
SWP Calculator
Estimate sustainable withdrawal plans from mutual fund corpus.
18 categories
All categories
Find the right calculator
Organised suites for finance, tax, property, business, health, science and everyday life – all built for Indian rules and units.
Finance & Investment102 tools
Investment, compounding, retirement, and wealth planning calculators for Indian savers and investors.
Tax & Compliance52 tools
Indian tax planning, GST, deductions, and compliance calculators for individuals and businesses.
Loan & Credit60 tools
Loan EMI, eligibility, refinancing, and credit management calculators for retail and business borrowing.
Real Estate44 tools
Property purchase, rent, ROI, tax, and valuation calculators tailored for Indian real estate decisions.
Business & Accounting69 tools
Profitability, valuation, SaaS metrics, cash flow, and accounting calculators for founders and finance teams.
Math & Statistics49 tools
Everyday math, advanced statistics, regression, and solver tools for students and analysts.
Health & Fitness41 tools
Health, wellness, nutrition, and performance calculators for everyday tracking and goal planning.
Engineering58 tools
Electrical, civil, mechanical, HVAC, and industrial calculators with practical engineering use cases.
Science & Physics42 tools
Physics, chemistry, and science calculators for academics, labs, and curiosity-driven learning.
Salary & HR39 tools
Salary, compensation, payroll, PF, gratuity, and HR calculators for professionals and employers.
Crypto & Trading39 tools
Crypto, derivatives, brokerage, and trading analytics calculators for active market participants.
Education32 tools
GPA, rank, exam, study planning, and education finance calculators for Indian students and families.
Unit Conversions37 tools
Convert units for science, trade, engineering, and everyday Indian calculations instantly.
Date & Time27 tools
Age, duration, calendar, payroll, and timeline calculators for daily planning and HR use cases.
Food & Nutrition34 tools
Food cost, recipe, diet, and nutrition calculators for homes, restaurants, and wellness planning.
Smart Planning Tools60+ tools
Free rule-based suggestions and scenario planners for finance, tax, loans, health, and productivity.
Regional & Localization15 tools
India-first tools with regional units, state-level rules, and localization for broader accessibility.
Emerging & Niche31 tools
Next-generation ownership, sustainability, creator economy, and new-age business calculators.
Smart advisor
Numbers, then next steps
After every calculation, Gizcalc explains what the result means for you – whether to prepay or invest, which tax regime wins, and what to check next.
- Instant and private – formulas run in your browser, with no data sent to third parties.
- Built for India – FY 2025-26 tax slabs, GST 2.0, RBI and EPFO rules.
- Clear recommendations – transparent rules you can check, not a black box.
Built in everywhere
Open the notepad
Every calculator comes with
Compare modePut two scenarios side by side
Share resultsSend a link with your inputs
PDF exportDownload a clean report
Save scenariosKeep calculations for later
Explained resultsPlain-language breakdowns
Related toolsThe logical next calculator
Live validationHelpful input feedback
Session historyRecall recent results
Instant results
Results update as you type or drag a slider – no page reloads.
Charts and tables
Breakdowns, growth curves and full amortisation schedules.
Free, always
No paywalls or locked features – every tool and export is free.
Made for India
Lakh and crore formatting, current tax slabs, GST and EPF rules.