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318 Calculators · 15 Sections
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CalcHub

318+ free calculators across 15 departments. Fast, accurate, works on any device.

/ search
0 users calculating right now
🔥 Popular
⚡ Kaise Kaam Karta Hai CalcHub?
3 simple steps mein apna answer pao — koi signup nahi, koi wait nahi
01
🔍
Calculator Dhundo
Search box mein type karo — EMI, GST, BMI, SIP — ya 15 departments mein se browse karo. 318+ calculators available hain.
02
✏️
Values Daalo
Simple fields fill karo. Saare inputs clearly labelled hain Hindi aur English mein. Koi confusion nahi.
03
⚡
Instant Result Pao
Milliseconds mein accurate result — formula explanation ke saath. Result save karo, share karo, ya print karo.
🌟 Sabse Zyada Use Hone Wale Calculators
Har roz lakho log in calculators ka use karte hain
🏦
EMI Calculator
Finance
2.1L+ uses
📈
SIP Calculator
Finance
1.8L+ uses
⚖️
BMI Calculator
Health
1.5L+ uses
🧾
GST Calculator
Finance
1.2L+ uses
💯
Percentage Calculator
Math
98K+ uses
🎂
Age Calculator
General
87K+ uses
💰
Compound Interest
Finance
76K+ uses
📊
Income Tax
Finance
72K+ uses
318+
Free Calculators
15
Departments
50K+
Active Users
100%
Free Forever
4.8★
User Rating
🎯 Aap Kya Hain? Apne Liye Dhundo
CalcHub har kisi ke liye — students se lekar professionals tak
🎓
Students
MathPhysicsChemistryStatistics
Exam preparation ke liye formula-based calculators with step-by-step explanation
Explore →
💼
Finance Professionals
EMISIPTaxROI
Accurate financial planning tools — loan amortization, investment projections, tax estimation
Explore →
🏥
Doctors & Health Workers
BMIGFRDrug DosageIV Drip
Clinical calculators — dosage, kidney function, BMI, calorie requirements, and more
Explore →
⚙️
Engineers
BeamCircuitConcreteFluid
Structural, electrical, mechanical, civil engineering calculators with formulas
Explore →
🌾
Farmers & Agriculturists
NPKIrrigationProfitCrop Yield
Kheti se related calculations — fertilizer, water usage, profit per acre, crop planning
Explore →
🏠
Everyday Use
AgeUnit ConvertDateTip
Rozana ki zaroorat ke liye — age, date difference, unit converter, tip calculator
Explore →

About CalcHub 🧮

Your all-in-one free calculator platform — built for students, professionals, and everyday users.

Our Mission

CalcHub was created with a simple mission: make every calculation fast, free, and accessible to everyone — students, professionals, farmers, engineers, and anyone who needs accurate answers instantly.

What We Offer

  • 318+ calculators across 15 departments
  • Finance, Math, Physics, Chemistry, Biology, Engineering and more
  • Works perfectly on any device — mobile, tablet, desktop
  • Completely free, no login required ever
  • Detailed formulas and explanations with every calculator
  • Available in English and Hindi

Why CalcHub?

Most calculator sites are cluttered with ads or limited to just a few tools. CalcHub brings everything in one place — beautifully designed, blazing fast, and completely free.

For Students 🎓

From basic arithmetic to complex physics formulas, CalcHub helps students at every level. Each calculator includes the formula, step-by-step solution, and real-world use cases.

For Professionals 💼

Engineers, financial analysts, doctors, farmers — CalcHub has specialized tools for every profession. Save calculations, export results, and compare scenarios.

318+
Calculators
15
Departments
100%
Free Forever
2
Languages

🆓 Always Free

No paywalls, no premium tiers, no ads. CalcHub will always be completely free.

🔒 Privacy First

We do not collect personal data. All calculations stay on your device.

⚡ Fast & Accurate

Instant results using verified formulas from academic and professional sources.

📱 Works Everywhere

Fully responsive — works perfectly on any screen size from 320px to 4K.

Blog & Articles 📝

Learn how to use calculators effectively with guides, tips, and educational articles.

Contact Us 📧

Have a question, suggestion, or found a bug? We'd love to hear from you!

📍 Get in Touch

Email: [email protected]
Response: Within 24 hours
Support: Mon–Sat, 9am–6pm IST

FAQ ❓

Everything you need to know about CalcHub.

Simple, Transparent Pricing

318+ calculators. Start free, upgrade anytime.

Monthly
Yearly Save 33%

🆓 Free

Perfect for casual users

₹0
Forever free
  • All 318+ calculators
  • 50 cloud saves
  • Basic history
  • All categories access
  • Unlimited saves
  • Export data
  • Priority support
⭐ Most Popular

🚀 Pro

For power users & professionals

₹99
per month
  • Everything in Free
  • Unlimited cloud saves
  • Cross-device sync
  • Export to CSV/PDF
  • Priority support
  • No ads
  • Early access to new calculators

💎 Lifetime

Pay once, use forever

₹1999 ₹3999
one time payment
  • Everything in Pro
  • Lifetime updates
  • Beta features access
  • Founder badge 🏅
  • Premium support
  • All future features
  • Invoice for taxes

Feature Comparison

Feature Free Pro Lifetime
318+ Calculators✓✓✓
Cloud Saves50UnlimitedUnlimited
Cross-device Sync✗✓✓
Export CSV/PDF✗✓✓
Priority Support✗✓✓
No Ads✗✓✓
Beta Features✗✗✓
Founder Badge✗✗✓
Price₹0₹99/mo₹1999 once
🔒 Secured by Razorpay 💳 All cards accepted 📱 UPI supported 🏦 Net banking ↩️ 7-day refund

Frequently Asked Questions

Kya free plan mein sab calculators milte hain? +
Haan! Saare 318+ calculators free mein available hain. Pro plan sirf cloud saves aur extra features ke liye hai.
Payment secure hai? +
Bilkul! Razorpay use karte hain jo India ka #1 payment gateway hai. UPI, cards, net banking sab supported hai.
Kya refund milega? +
Haan, purchase ke 7 din ke andar refund request kar sakte ho. [email protected] pe email karo.
Pro aur Lifetime mein kya fark hai? +
Pro monthly/yearly subscription hai. Lifetime ek baar pay karo, forever use karo — plus beta features aur founder badge milega.
Cancel kaise karein? +
Account settings se kabhi bhi cancel kar sakte ho. Cancel ke baad current period khatam hone tak Pro features milenge.

⭐ User Reviews

4.8
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Sitemap 🗺️

All 318 calculators organized by department.