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About SmartCalc

Free, fast, and accurate calculators for every decision - financial, fitness, and beyond. No sign-up. No clutter. Just answers.

What is SmartCalc?

SmartCalc is a collection of free online calculators covering finance, health, fitness, and everyday math. Every tool is designed to give you clear, accurate results instantly — no account required, no data stored, no distractions.

Whether you're planning an EMI for a home loan, calculating your SIP returns, tracking your net worth, or figuring out your BMI - SmartCalc has a tool for it.

What we offer

💰

Finance

EMI, SIP, FD, PPF, income tax, salary, GST, retirement, net worth and more.

🏃

Fitness

BMI, TDEE, calorie deficit, body fat, ideal weight and macros.

🔄

Converters & Date

Currency, units, age, working days, timezone and week number.

🌟

Everyday & Math

Electricity bill, fuel cost, percentage, ratio, average and more.

Our principles

  • ⚡
    Fast - All calculations happen in real time, in your browser - no waiting.
  • 🎯
    Accurate - Formulas are verified against financial standards and cross-checked for correctness.
  • 🔒
    Private - Nothing you enter is ever sent to a server. Your data stays on your device.
  • 🆓
    Free - Always free. No paywalls, no premium tiers for basic tools.

Who builds SmartCalc

SmartCalc is built and maintained by K L Hemanth Kumar, a software professional. K L Hemanth Kumar is a software professional who builds and maintains SmartCalc. Each calculator is coded from the published formula and cross-checked against official sources so the numbers you see are accurate and current.

Because the calculators are written and tested like software — each formula implemented from its official definition and checked against worked examples — the results you get match what a bank, the tax department, or a fund house would compute.

How we keep the numbers accurate

Every rate and formula comes from an official, named source — RBI, the Income Tax Department, AMFI, and EPFO — not from guesswork. Time-sensitive figures (repo rate, tax slabs, PPF/EPF/SSY rates, GST slabs, FD rates) are kept in a single maintained configuration and reviewed on a schedule tied to when those bodies actually update:

  • Loan, FD and home-loan rates — reviewed after each RBI Monetary Policy Committee meeting.
  • Income-tax slabs and standard deduction — reviewed after every Union Budget.
  • PPF, SSY and other small-savings rates — reviewed each quarter.
  • Mutual-fund return assumptions — reviewed annually against AMFI category averages.

Tool content was last reviewed in July 2026. SmartCalc currently offers 86 calculators. Results are for information only — not financial, tax, or medical advice.

Contact

Have a suggestion, found a bug, or want to request a calculator? We'd love to hear from you. hello@smartcalc.in