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Financial Calculators

Practical money tools for India — estimates only.

Browse popular tools below, or filter by name and keywords.

Popular

Estimates only — not advice

Popular Calculators

6 tools
GST Calculator

Calculate GST exclusive and inclusive amounts.
SIP Calculator

Estimate SIP returns and investment growth.
EMI Calculator

Calculate loan EMI, interest and tenure.
FD Calculator

Fixed deposit maturity and interest calculator.
RD Calculator

Recurring deposit maturity calculator.
PF Calculator

Provident fund contribution calculator.

Personal Finance

3 tools
Emergency Fund Calculator

Estimate emergency fund target, coverage months and funding gap.
Debt Payoff Calculator

Plan debt payoff with interest, timeline and extra payments.
Debt-to-Income Ratio Calculator

Calculate DTI percentage and remaining income after debts.

Investment & Banking

3 tools
Option Averaging Calculator

Stock and option averaging calculator.
Compound Interest Frequency Calculator

Compare annual, monthly and daily compounding plus APR vs APY.
Inflation Impact Calculator

See future cost and purchasing power under inflation.

Retirement & FIRE

1 tools
FIRE Number Calculator

Estimate FIRE target, progress and Coast FIRE corpus.

Tax

2 tools
Income Tax Calculator

Estimate income tax liability.
TDS Calculator

Calculate TDS on payments.

Business

4 tools
Invoice Generator

Create GST-ready invoices and download PDF.
Accounting Suite

Simple accounting tools for small business.
Bank Reconciliation

Reconcile bank statements quickly.
Business Calculator

Business markup, margin and commerce calculators.

Real Estate

1 tools
Rent vs Buy Calculator

Compare renting versus buying a home with clear assumptions.
No finance tools match your search.

What are ToolNest Financial Calculators?

A set of free browser-based money tools for common Indian personal-finance questions — savings targets, debt timelines, compounding, FIRE estimates, rent vs buy comparisons, and inflation impact.

Estimates, not advice

Results are educational estimates. They do not replace advice from a qualified financial advisor, banker, or tax professional. Assumptions (rates, tenure, inflation) can change outcomes materially.