Skip to main content
Free Tools

Coimbatore Apps & Online Calculators

Free digital tools built for Coimbatore residents — live weather, daily gold rates, EMI & tax calculators, post office savings, TNEB bill, and Tamil Nadu government schemes. No login, no ads, mobile-first.

22
Free Tools
0
Logins Needed
100%
Mobile Friendly
22 Free Tools  ·  0 Logins  ·  100% Mobile Friendly
LIVE DATA TOOLS (2 tools)
🌤️
Live Updates Popular

Coimbatore Weather Today

கோவை வானிலை

Live weather, 7-day forecast, air quality

Open →
🪙
Daily Rates Popular

Gold Rate Today in Coimbatore

தங்கம் விலை

22K/24K/18K gold rates per gram and pavan

Open →
FINANCIAL CALCULATORS (5 tools)
🏠
Home · Car · Personal Popular

EMI Calculator

மாத தவணை கணக்கு

Calculate monthly EMI for home loan, car loan, and personal loan

Open →
🧾
FY 2025-26 Popular

Income Tax Calculator

வருமான வரி

New vs old regime comparison — zero tax up to ₹12 lakh

Open →
📈 Mutual Fund

SIP Calculator

SIP கணக்கீடு

Calculate SIP returns at 8%, 10%, 12%, 15% with step-up option

Open →
🏢 8.25% Interest

EPF Calculator

வருங்கால வைப்பு நிதி

Employee Provident Fund maturity with employer contribution split

Open →
🎁 5yr+ Service

Gratuity Calculator

பணிக்கிறை கணக்கு

Calculate gratuity — ₹20 lakh tax-free under Payment of Gratuity Act

Open →
POST OFFICE SAVINGS CALCULATORS (12 tools)
👧 Girl Child 8.2%

Selva Magal Scheme

செல்வ மகள் திட்டம்

SSY calculator — maturity, interest, tax savings at 8.2%

Open →
🏦 EEE Tax-Free

PPF Calculator

பொது வருங்கால வைப்பு நிதி

Public Provident Fund at 7.1% for 15 years

Open →
📜 5-Year 7.7%

NSC Calculator

தேசிய சேமிப்பு சான்றிதழ்

National Savings Certificate at 7.7% for 5 years

Open →
🌾 Money Doubles

KVP Calculator

கிசான் விகாஸ் பத்ரா

Kisan Vikas Patra — doubles in 115 months at 7.5%

Open →
👴 Quarterly 8.2%

SCSS Calculator

மூத்த குடிமக்கள் சேமிப்பு

Senior Citizen Savings Scheme — quarterly income at 8.2%

Open →
💵 Monthly Income

Post Office MIS

மாதாந்திர வருமான திட்டம்

Monthly Income Scheme — guaranteed monthly payout at 7.4%

Open →
🔄 From ₹100/Month

Post Office RD

தொடர் வைப்பு

Recurring Deposit — start from ₹100/month at 6.7%

Open →
🏛️ Up to 7.5%

Post Office TD/FD

கால வைப்பு

Time Deposit — 1yr to 5yr at up to 7.5%

Open →
👩 Women Only

Mahila Samman

மகிளா சம்மான்

Mahila Samman Savings Certificate at 7.5% for women

Open →
💰 4% Liquid

PO Savings Account

சேமிப்பு கணக்கு

Post Office savings account interest at 4% p.a.

Open →
⚖️ Side by Side

Compare All PO Schemes

திட்டங்கள் ஒப்பீடு

All 11 post office schemes side by side — enter once, compare all

Open →
TAMIL NADU SPECIAL SCHEMES (1 tool)
👦 TN Boy Child 9.7%

Ponmagan Nidhi

பொன்மகன் பொதுவைப்பு நிதி

Tamil Nadu boy child savings scheme at 9.7% for 15 years

Open →
UTILITY & TAX CALCULATORS (3 tools)
⚡
Bi-Monthly Bill Popular

TNEB Electricity Bill

மின்சாரம் கட்டணம்

TANGEDCO domestic bill calculator with LT-IA slab rates

Open →
🏘️ Stamp Duty 7%

Property Registration

சொத்து பதிவு கட்டணம்

Estimate stamp duty (7%) and registration fee (1%) for Coimbatore

Open →
📋 TN Salaried

Professional Tax

தொழில் வரி

Tamil Nadu professional tax calculator for salaried employees

Open →
Can't find what you need?

Suggest a free calculator and we'll build it.

Suggest a Tool →

About Coimbatore Digital Tools

CoimbatoreJunction provides 22 free digital tools and calculators across five categories — Live Data Tools, Financial Calculators, Post Office Savings Calculators, Tamil Nadu Special Schemes, and Utility & Tax Calculators — all designed for Coimbatore (Kovai / கோவை) residents. Whether you need the day's gold rate, want to plan your home loan EMI, compute your TNEB electricity bill, or compare all post office schemes in one view, you will find a localized calculator here.

The Financial Calculators section covers everyday needs: EMI for home, car, and personal loans; income tax with new vs old regime comparison (zero tax up to ₹12 lakh); SIP returns at multiple rates; EPF maturity with employer split; and gratuity entitlement under the Payment of Gratuity Act.

The Post Office Savings Calculators section covers every major scheme offered at Indian post offices: PPF, Sukanya Samriddhi (Selva Magal), NSC, KVP, SCSS, MIS, RD, TD, Mahila Samman, and the basic PO Savings Account — plus a side-by-side comparison tool. Each calculator uses current government-notified interest rates and shows full year-by-year or month-by-month breakdowns.

Tamil Nadu residents will also find calculators for state-specific schemes like Ponmagan Podhuvaippu Nidhi (for boy children), TANGEDCO (TNEB) electricity bill with correct LT-IA slab rates, property registration stamp duty for Coimbatore, and Tamil Nadu professional tax for salaried employees.

All tools work perfectly on mobile devices — no app install needed, no account required, and no advertisements.

Data Sources and Accuracy

  • Weather: Open-Meteo API — professional-grade weather service using ERA5 reanalysis data. Accurate to within 1-2°C for Coimbatore's semi-arid climate.
  • Gold Rate: International spot price (XAU/INR) with estimated import duties. Actual IBJA rates charged by local jewelers may vary by ₹500-₹2,000/pavan due to GST, making charges, and local premium.
  • Post Office Calculators: Interest rates as notified by the Government of India for the current quarter. Rates change quarterly — always verify with your post office before investing.
  • EMI / Tax / SIP / EPF / Gratuity: Standard financial formulas as per RBI and Income Tax Act provisions. Tax slabs reflect FY 2025-26 Budget announcements.
  • TNEB Bill: TANGEDCO LT-IA domestic tariff slab rates including the bi-monthly free-units concession as announced by the Tamil Nadu government.
  • Property Registration: Tamil Nadu stamp duty (7%) and registration fee (1%) as per current government guidelines for Coimbatore district.
  • Ponmagan Nidhi: Tamil Nadu government scheme rates applicable at Tamil Nadu post offices.

Frequently Asked Questions

What free tools are available on CoimbatoreJunction? +
CoimbatoreJunction offers 22 free tools: live weather, gold rate, EMI calculator, income tax (FY 2025-26), SIP, EPF, gratuity, PPF, Selva Magal (SSY), NSC, KVP, SCSS, Post Office MIS, Post Office RD, Post Office TD/FD, Mahila Samman, PO Savings Account, Compare All PO Schemes, Ponmagan Nidhi, TNEB electricity bill, property registration, and professional tax.
Are these tools free to use? +
Yes, all 22 tools are completely free. No registration, no payment, no hidden fees.
Do these tools work on mobile? +
Yes, all tools are designed for mobile-first usage. They work on Android and iOS browsers without needing to install any app.
How often is the weather data updated? +
Weather data is fetched in real-time from Open-Meteo's servers and cached locally for 1 hour. You will always see data less than 1 hour old.
Why does the gold rate differ from my local jeweler? +
The gold rate shown is based on international spot price converted to INR. Local jeweler rates (IBJA rates) include customs duty, GST (3%), and making charges, which can add ₹1,000–₹3,000 per pavan over the spot price.
What is the difference between PPF and Selva Magal (SSY) scheme? +
PPF (Public Provident Fund) is open to all Indian citizens with a 15-year lock-in at 7.1% interest. Selva Magal (Sukanya Samriddhi Yojana / SSY) is exclusively for girl children below age 10 with a higher interest rate of 8.2% and matures when the girl turns 21. Both enjoy EEE tax status — invest, interest earned, and maturity amount are all tax-free.
How many free units does TNEB give per month? +
TANGEDCO bills domestic consumers (LT-IA category) every two months. Consumers using up to 100 units in a bi-monthly billing cycle receive those units free of charge under the Tamil Nadu government's free electricity scheme. Units beyond 100 are billed at progressive slab rates. Our TNEB calculator applies these slab rates automatically.
Who is eligible for the Ponmagan Nidhi scheme? +
Ponmagan Podhuvaippu Nidhi is a Tamil Nadu government scheme for boy children. Parents can open an account for a male child from birth up to age 3 at any Tamil Nadu post office. The scheme offers 9.7% interest for 15 years. Tamil Nadu domicile is required.
Which calculator is best for Coimbatore home buyers? +
The EMI Calculator helps you plan home loan repayments — enter the loan amount, interest rate, and tenure to see your exact monthly payment. For registration costs, use the Property Registration Calculator to estimate stamp duty (7%) and registration fee (1%).
How does the Post Office Schemes Comparison tool work? +
Enter any amount once and instantly see maturity/income from all 11 post office schemes side by side — PPF, NSC, KVP, SCSS, MIS, RD, TD, Mahila Samman, PO Savings, Ponmagan, and Selva Magal — at current 2024-25 rates.
Does the TNEB calculator work for commercial connections? +
No — the TNEB calculator is specifically for LT-IA domestic consumers (residential households). Commercial and industrial connections (LT-IIA, HT) use different tariff slabs and are not covered.