About CalcHub
CalcHub is India's finance copilot — 65+ calculators with real RBI/CBIC/EPFO rates, an AI answer engine, product comparisons, and guides in 8 Indian languages. Free forever. No login required.
Our mission
Every Indian deserves access to accurate, cited financial calculations — not generic global tools that don't know Indian tax slabs, RBI repo rates, or EPF contribution rules. CalcHub exists to be the most accurate India-specific finance calculator on the internet.
We don't guess at rates. Every number is sourced from official publications — the Reserve Bank of India, Central Board of Indirect Taxes and Customs, Income Tax Department, and EPFO. Sources are cited on every calculator page with last-updated dates.
What we offer
65+ Calculators
EMI, SIP, FD, PPF, NPS, tax, HRA, gratuity, capital gains, retirement, and more
AI Answer Engine
Ask any India finance question in plain English or Hindi at /ask
Live Rates Dashboard
RBI repo, top bank home loan & FD rates, IT slabs, GST, EPF — one page
8 Languages
Hindi, Tamil, Telugu, Marathi, Bengali, Kannada, Gujarati, Punjabi
Medical Calculators
10 clinical calculators — BMI, eGFR, CHADS2, Wells PE, and more
Construction Calcs
10 civil/structural calculators per IS codes — concrete, rebar, paint, HVAC
UAE, UK, Singapore
Country-specific calculators in English, Arabic, Mandarin, and Malay
MCP Server + API
Any AI agent can call CalcHub as a tool. Public REST API with OpenAPI spec.
Data sources
- RBI — Repo rate, bank rate, reverse repo, monetary policy statements (rbi.org.in)
- Income Tax Department — Tax slabs, Section 80C/80D limits, rebates (incometax.gov.in)
- CBIC — GST slabs and rules (cbic-gst.gov.in)
- EPFO — EPF contribution rates and interest rate (epfindia.gov.in)
- Bank published rates — Home loan, car loan, personal loan, and FD rates from SBI, HDFC, ICICI, Axis, BoB, PNB, Kotak, LIC Housing
Privacy & data
All calculations run entirely in your browser. Your financial data never leaves your device — we don't store inputs, results, or personal information. The only data we collect: email (if you subscribe to the newsletter), and anonymous Vercel Web Analytics for page views. No third-party trackers beyond Google AdSense (if enabled via env vars, and only after cookie consent).
For developers
CalcHub is built for the AI-search era. Every calculator page has structured JSON-LD (Dataset, FAQPage, HowTo, BreadcrumbList, WebApplication) optimized for citation by AI engines. We also offer:
- Public REST API — JSON endpoint for any calculator, free tier at 1k requests/month
- MCP Server — install @calchub/mcp-server to give any AI agent access to Indian finance tools
- Embeddable Widgets — iframe-based calculator widgets for your website
Contact
Expert reviewers: apply here. Creators: join the creator program. Business inquiries: enterprise plans.
All Calculators
EMI Calculator
Calculate monthly loan EMI and total interest
SIP Calculator
Plan your mutual fund SIP investments
Compound Interest
Calculate compound interest growth
FD Calculator
Fixed deposit maturity calculator
Salary Calculator
Calculate take-home salary after tax
GST Calculator
Add or remove GST from any amount
BMI Calculator
Check your Body Mass Index
Age Calculator
Calculate exact age from date of birth
Percentage Calculator
Calculate percentages instantly
Unit Converter
Convert length, weight, temperature
PPF Calculator
Public Provident Fund maturity — 15 year, 7.1% compound
NPS Calculator
National Pension System corpus projection with blended returns
NSC Calculator
National Savings Certificate — 5 year at 7.7%
RD Calculator
Recurring Deposit maturity with quarterly compounding
CAGR Calculator
Compound Annual Growth Rate from start to end value
Lumpsum Calculator
One-time mutual fund investment growth projection
Step-Up SIP Calculator
SIP with annual increase — see the power of stepping up
Mortgage Amortization
Month-by-month home loan repayment schedule
Education Loan Calculator
Student loan EMI with moratorium period
Car Loan Calculator
Calculate car loan EMI and total interest payable
Income Tax Calculator
New regime FY 2025-26 tax with 87A rebate up to ₹12L
HRA Calculator
HRA exemption — metro/non-metro, old regime
Gratuity Calculator
Gratuity payout — last salary × 15/26 × years, ₹20L cap
Capital Gains Calculator
STCG 20% / LTCG 12.5% above ₹1.25L for equity
Retirement Corpus Calculator
Corpus needed to retire comfortably at your target age
Goal SIP Calculator
Monthly SIP required to reach your target corpus
Home Affordability Calculator
Max house price you can afford based on income + savings
Tip Calculator
Split bill and tip by number of people
Discount Calculator
Final price and savings after any discount %
Fuel Cost Calculator
Trip fuel cost — distance, mileage, fuel price
Currency Converter
Live exchange rates — convert between 30+ currencies instantly
Mean Median Mode
Enter numbers and get mean, median, mode, range, and variance
Standard Deviation Calculator
Population and sample standard deviation with step-by-step breakdown
Quadratic Equation Solver
Solve ax² + bx + c = 0 — real and complex roots with discriminant
Loan Eligibility Calculator
Max loan you can get based on salary, EMIs, and FOIR rule
Simple Interest Calculator
Calculate simple interest — P × R × T / 100
Stamp Duty Calculator
State-wise stamp duty & registration charges for 10 Indian states
Gold Loan Calculator
Loan amount against gold with LTV and interest calculation
Sukanya Samriddhi Calculator
SSY maturity at age 21 — deposit for 15 years at 8.2%
SCSS Calculator
Senior Citizen Savings Scheme — quarterly income at 8.2%
KVP Calculator
Kisan Vikas Patra — doubles your money in 115 months at 7.5%
Post Office MIS Calculator
Monthly Income Scheme — guaranteed monthly payout at 7.4%
XIRR Calculator
Extended IRR for irregular cashflows — Newton-Raphson method
Dividend Yield Calculator
Dividend yield % and monthly income per ₹1L invested
Inflation Calculator
Future cost of goods and purchasing power erosion
Real Estate ROI Calculator
CAGR appreciation, rental yield, and total ROI on property
Profit Margin Calculator
Profit, margin %, and markup % from cost & selling price
Break Even Calculator
Units and revenue needed to cover fixed costs
Working Capital Calculator
Working capital, current ratio, and liquidity assessment
TDS Calculator
TDS rates by section — 194J, 194I, 194C, 194A, 194H
Body Fat Calculator
US Navy method — body fat %, category, from measurements
Calorie Calculator
BMR and daily calories — Mifflin-St Jeor equation
TDEE Calculator
Total Daily Energy Expenditure — calories for weight loss or gain
Macro Calculator
Daily protein, carbs, and fat targets for cut, bulk, or keto
Pregnancy Due Date Calculator
Due date, current week, and trimester from last period date
Sleep Calculator
Best bedtime and wake-up times based on 90-min sleep cycles
Water Intake Calculator
Daily water goal based on weight, activity level, and climate
Wedding Budget Calculator
Indian wedding budget by guests, city tier, and style
EMI vs Rent Calculator
Should you buy or rent? Compare total costs over time
Bitcoin Calculator
Live BTC/ETH prices — portfolio value in INR and USD
Crypto Profit Calculator
Calculate crypto trading profit, loss, and ROI instantly
Crypto Tax Calculator India
30% flat tax + 1% TDS — India crypto tax calculator (Budget 2022)
Crypto DCA Calculator
Monthly crypto SIP returns — dollar cost averaging calculator
CGPA Calculator
Convert CGPA to percentage and calculate CGPA from subject grades
Grade Calculator
Calculate overall grade and marks needed to reach your target
Attendance Calculator
Check if you meet 75% requirement and how many classes you can miss
GPA Calculator
US 4.0 scale GPA calculator for courses with credit hours
Percentage to Marks
Convert percentage to marks and marks to percentage instantly
Term Insurance Calculator
How much term life insurance cover do you need? HLV method.
Health Insurance Calculator
Estimate health insurance premium by age, city, and family size
Car Insurance Calculator
IDV, third-party, and OD premium estimate with NCB discount
LIC Maturity Calculator
LIC policy maturity value with bonus — Endowment, Jeevan Anand, Money Back
IFSC Code Lookup
Find bank branch details — name, address, RTGS/NEFT/IMPS support
GSTIN Validator
Validate GST number and decode state, PAN, entity type
PAN Card Validator
Validate PAN format and decode taxpayer type
PIN Code Finder
Find post office, district, and state from any 6-digit PIN code
Vehicle Registration Info
Decode state and RTO from any Indian vehicle number plate