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Instant EMI, GST, SIP, Tax & more — free, accurate, and beautifully simple.

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CTC vs In-Hand Salary: What's the Difference?
Raja Mahakul · Jun 11, 2026 · 5 min read
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Old vs New Tax Regime 2026: Which One Saves You More?
Raja Mahakul · Jun 10, 2026

All Calculators

Click any card to open the calculator instantly.

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EMI Calculator

Calculate monthly EMI for home, car & personal loans.

Loan
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GST Calculator

Add or remove GST at 5%, 12%, 18% or 28% rates.

Tax
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Salary Calculator

Compute in-hand salary from CTC with all deductions.

Salary
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Age Calculator

Find your exact age in years, months and days.

Personal
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SIP Calculator

Project SIP returns and total wealth gained over time.

Investment
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PF Calculator

Estimate EPF balance with employee & employer contributions.

Retirement
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HRA Calculator

Calculate HRA exemption for your tax filing.

Tax
🎁

Gratuity Calculator

Compute gratuity amount as per Payment of Gratuity Act.

Salary
🇮🇳

Income Tax Calculator

Old vs New regime tax computation with slabs (FY 2025-26).

Tax

Instant Results

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100% Private

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Mobile Friendly

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Always Free

About Numvexa

Numvexa was built with a single mission: give every Indian access to accurate, free, and easy-to-understand financial calculators.

Managing personal finance is hard. Banks often hide real numbers behind jargon. We cut through that with clear step-by-step formulas and instant results — no sign-up, no ads forced on you, no data collection.

Numvexa is owned and maintained by Raja Mahakul.

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Contact Us

Have feedback, a bug report, or a suggestion for a new calculator? We'd love to hear from you.

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Email Us Directly

rajamahakul90@gmail.com

We typically reply within 24 hours.

Frequently Asked Questions

How is EMI calculated?

EMI = [P × r × (1+r)ⁿ] / [(1+r)ⁿ – 1] where P = principal, r = monthly interest rate, n = tenure in months. Our calculator shows every step.

Which GST rates are available?

We support all four standard GST slabs: 5%, 12%, 18%, and 28%. You can both add GST to a base price or strip GST from a GST-inclusive price.

Is my data safe?

Absolutely. All calculations run entirely in your browser using JavaScript. No data is sent to any server. We have no database of user inputs.

Which tax regime should I choose?

It depends on your deductions. If you have significant 80C, HRA & home loan deductions, the old regime often saves more. Our Income Tax Calculator compares both regimes side-by-side.

How accurate are the SIP projections?

SIP projections assume a constant annual return rate compounded monthly. Actual mutual fund returns vary. Treat projections as indicative, not guaranteed.

How is HRA exemption calculated?

HRA exemption = Minimum of: (a) Actual HRA received, (b) 50%/40% of Basic Salary (metro/non-metro), (c) Actual rent paid minus 10% of Basic Salary.

Who is eligible for gratuity?

An employee is eligible for gratuity after completing 5 years of continuous service with the same employer, as per the Payment of Gratuity Act, 1972.

Can I use these calculators on mobile?

Yes! Numvexa is fully responsive and tested on Android and iOS. The layout adapts perfectly for small screens.