Free Financial Calculators: SIP, EMI, Loans, Tax & More
Instant results. Transparent formulas. Your data stays on your device: no account, no email, no login ever required.
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Live InteractiveEstimated Maturity
₹1.26 Cr
(₹1,26,14,400)Featured calculators
Start with top tools for personal wealth, home loans, taxation, and business planning.
SIP Calculator
Calculate maturity value and wealth gain for Systematic Investment Plans with monthly compounding.
EMI Calculator
Calculate monthly EMI, total interest, and repayment schedule for any loan.
Fixed Deposit (FD) Calculator
Calculate maturity value and interest earned on fixed deposits with quarterly compounding.
CAGR Calculator
Calculate the Compound Annual Growth Rate between two investment values over time.
WACC Calculator
Calculate Weighted Average Cost of Capital from equity, debt, and tax rate inputs.
Break-even Calculator
Calculate the break-even point in units and revenue for any fixed and variable cost structure.
Browse by topic
50 calculators and guides grouped into six topic hubs: loans, investing, India tax, business and accounting, corporate finance, and everyday money math.
Loans
10 toolsEMI, home loan, car loan, mortgage, affordability and debt payoff.
- · EMI Calculator
- · Home Loan Calculator
- · Car Loan Calculator
- + 7 more →
Investing
12 toolsSIP, lump sum, FD, RD, PPF, CAGR, XIRR, inflation and 401(k).
- · SIP Calculator
- · Lump Sum Calculator
- · Compound Interest Calculator
- + 9 more →
Tax (India)
7 toolsIncome tax, salary, HRA, TDS, advance tax, capital gains and GST.
- · Income Tax Calculator
- · GST Calculator
- · HRA Calculator
- + 4 more →
Business & Accounting
19 toolsBreak-even, margins, COGS, working capital, ratios and depreciation.
- · UPI MDR Calculator
- · Break-even Calculator
- · Profit Margin Calculator
- + 16 more →
Corporate Finance
8 toolsWACC, NPV, IRR, payback period, DCF — global formulas.
- · WACC Calculator
- · NPV Calculator
- · IRR Calculator
- + 5 more →
Everyday Math
10 toolsSimple and compound interest, inflation, present and future value.
- · Compound Interest Calculator
- · Simple Interest Calculator
- · Profit Margin Calculator
- + 7 more →
From the blog
Research-backed guides on investments, loans, taxes, and business finance.
Why a 10% Flat Loan Actually Costs 18% APR
Most people compare loans by the headline rate. Here's why that's wrong, and how to calculate the true cost of any loan.
New vs Old Tax Regime: Which Saves You More?
A worked step-by-step comparison using real FY 2025-26 slabs, standard deductions, and the Section 87A rebate.
Break-Even Analysis: The One Number Every Business Needs
Fixed costs, variable costs, and contribution margin: how to find your break-even point and what it actually means for pricing.
Why Calcumetrics
Built for investors, students, business owners, and finance professionals who need transparent, reliable calculation tools.
India & Global Coverage
Specialized calculators for Indian GST, HRA, PPF, and tax regimes, alongside international tools like WACC, DCF, IRR, and 401(k).
Every Formula Transparent
The exact formula, variable legend, and worked step-by-step example appear directly on every calculator. Zero black-box calculations.
Private Client-Side Calculations
All calculations run directly in your web browser. No accounts, no logins, and your inputs never leave your device.
Test-Driven Accuracy
Every calculation engine is validated with published financial fixtures and current statutory tax amendments before launch.
Every formula. Shown and tested.
50 free financial calculators for investments, loans, taxes, business and corporate finance. Transparent, reliable, and private.