Σ Free Online Calculators — India & USA

265+ accurate, expert-verified calculators for finance, health, science and everyday decisions. Updated July 2026. No signup. No fees.

✅ 265+ Calculators 🇮🇳 India Market 🇺🇸 USA Market 🔒 No Signup 📱 Mobile Ready 🌐 9 Languages
265+
Free Calculators
220
Finance Calculators
2
Markets India + USA
9
Languages
100%
Free Forever
✅ Expert-Verified Formulas 📅 Updated July 2026 🔒 No Data Collected 📱 Works Offline 📋 Free Embed Code 📖 Source Citations
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265+ calculators across 3 major categories — all free, all expert-verified
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Finance Calculators

220 Calculators

SIP, EMI, Income Tax, PPF, FD, NPS, GST, Mutual Fund, 401k, Mortgage and 200+ more for India & USA.

Browse Finance →
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General & Health

22 Calculators

BMI, Age, Tip, Percentage, Calorie, Concrete, Grade, GPA, Discount and everyday tools.

Browse General →
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Science & Math

23 Calculators

Physics, Chemistry, Statistics, Math — velocity, torque, molarity, Fibonacci, z-score and more.

Browse Science →
⭐ Most Popular Calculators
Used by millions of people every month across India and the USA
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SIP Calculator

Mutual fund SIP — AMFI data

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EMI Calculator

Home, Car & Personal loan EMI

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Income Tax India

Old vs New regime FY2026-27

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PPF Calculator

PPF at 7.1% rate 2026

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Tip Calculator

Bill split + tipping norms

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FD Calculator

FD maturity + TDS calculation

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BMR Calculator

Basal Metabolic Rate

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GST Calculator

GST inclusive & exclusive

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Age Calculator

Exact age in years, months, days

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Percentage Calculator

All 4 types of % calculation

💰 All 220 Finance Calculators
Tax, investments, loans, savings, retirement — India and USA

→ View All Finance Calculators

🧮 All 22 General & Health Calculators
BMI, calorie, age, tip, percentage, construction, academic and everyday tools

→ View All General Calculators

🔬 All 23 Science & Math Calculators
Physics, chemistry, statistics and advanced math with full formula breakdowns

→ View All Science Calculators

Frequently Asked Questions

Are all calculators on Calculator200.com free?
Yes — every calculator is completely free. No registration, no email, no subscription, no hidden fees. We support the site through Google AdSense advertising.
Can I use these on my mobile phone?
Yes — fully optimised for mobile phones and tablets. Works on Chrome, Safari, Firefox, Edge. All calculations run locally in your browser — no internet required after the page loads.
How accurate are the calculations?
All formulas are sourced from official bodies — RBI, SEBI, CBDT for India; IRS, Federal Reserve for USA; WHO, ICMR for health. Regulatory data updated within 48 hours of confirmed changes. Arithmetic accurate to 15+ significant figures.
Can I embed a calculator on my website?
Yes — every calculator page has a free embed code (iframe). Copy and paste into any webpage. Free, no attribution required.
Do you have India-specific finance calculators?
Yes — 220+ India-specific calculators: SIP, EMI, Income Tax (FY2026-27 old + new regime), PPF, FD, NPS, GST, EPF, Gratuity, HRA, Section 80C/80D and much more.
What languages are supported?
Every calculator has a language selector: English, Hindi, Spanish, French, German, Arabic, Portuguese, Chinese, Japanese. UI translates instantly in your chosen language.