Retirement & Cash Flow
Financial Independence
Financial independence planner
Estimate the corpus and monthly savings needed to reach financial independence.
Calculator hub
Open a dedicated calculator page for EMI, SIP, loans, tax, retirement, trading, and more. Each page includes a detailed live tool, a visual chart, and SEO metadata built for discoverability.
Tools
35
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Cards
How to use this hub
This calculator hub groups finance tools by borrowing, investing, tax, retirement, and trading use cases. Open a dedicated calculator page when you need a live estimate, a chart, an FAQ section, and a URL you can revisit later for the same workflow.
These pages are designed for planning and comparison. They help you understand how values such as amount, rate, tenure, tax regime, deductions, and withdrawals change the estimate before you make a filing, payroll, lending, investment, or trading decision.
Find a calculator
Retirement & Cash Flow
Estimate the corpus and monthly savings needed to reach financial independence.
Loans & EMI
Estimate EMI for a property purchase after your down payment.
Investing & Savings
Project how monthly investing compounds over time, including yearly step-up.
Tax & Salary
Quickly compare tax impact using current old/new regime rules and basic personal profile assumptions.
Browse categories
These cards lead to category landing pages with their own titles, metadata, and grouped tools.
Loans & EMI
Compare EMI, eligibility, interest rate, and repayment tools for everyday borrowing decisions.
Investing & Savings
Explore SIP, lumpsum, PPF, RD, FD, and long-term compounding tools in one place.
Tax & Salary
Estimate take-home pay, GST, HRA, gratuity, and income-tax impact with India-focused rules.
Retirement & Cash Flow
Plan NPS, APY, SWP, Sukanya, SCSS, MIS, and financial independence targets.
Trading & Markets
Review brokerage, stock average, and market-transaction tools before you place a trade.
Loans & EMI
Loans & EMI
Borrowing planner
Estimate monthly EMI, interest cost, and total repayment for standard loans.
Loans & EMI
Vehicle financing
Estimate EMI for a car purchase after factoring in your down payment.
Loans & EMI
Borrowing capacity
Estimate the loan amount you may qualify for based on income and obligations.
Loans & EMI
Interest basics
Calculate interest and maturity using a straight-line simple interest formula.
Loans & EMI
Loan comparison
Compare a flat-rate loan against a reducing-balance loan on the same amount.
Loans & EMI
Reverse calculation
Solve the implied annual rate from principal, maturity value, and tenure.
Investing & Savings
Investing & Savings
Retirement planning
Estimate future provident fund corpus with opening balance, monthly contribution, and yearly growth.
Investing & Savings
Capital preservation
Estimate maturity value using tenure, rate, and compounding frequency.
Investing & Savings
Wealth planning
Estimate a SIP where your monthly contribution rises every year.
Investing & Savings
One-time investing
Estimate how a one-time investment can compound over a chosen period.
Investing & Savings
Long-term savings
Project PPF maturity using annual contributions and annual compounding.
Investing & Savings
Recurring savings
Estimate RD maturity from monthly deposits and compounding.
Investing & Savings
Small savings
Estimate National Savings Certificate maturity using annual compounding.
Investing & Savings
Senior citizen savings
Estimate senior citizen savings income with quarterly interest payouts.
Investing & Savings
Girl child savings
Project maturity value for annual contributions under Sukanya Samriddhi assumptions.
Investing & Savings
Monthly income
Estimate monthly interest income from a post office monthly income scheme.
Investing & Savings
Investment growth
Estimate either SIP or lumpsum mutual fund growth from a single calculator.
Investing & Savings
Future value
Estimate how today’s amount changes under future inflation assumptions.
Investing & Savings
Compounding
Estimate how a principal grows with compounding over time.
Investing & Savings
Growth rate
Work out the annualized growth rate between an initial and final value.
Investing & Savings
Tax-saving investment
Estimate ELSS growth while keeping the tax-saving lock-in in view.
Tax & Salary
Tax & Salary
Salary structuring
Estimate exempt and taxable HRA using salary, rent, and city classification.
Tax & Salary
Exit benefits
Estimate gratuity based on last drawn salary, service years, and employer coverage.
Tax & Salary
Tax operations
Split inclusive or exclusive values into taxable amount, GST amount, and CGST/SGST or IGST.
Tax & Salary
Take-home pay
Estimate monthly and annual take-home salary from CTC and monthly deductions.
Tax & Salary
Tax deduction
Estimate annual tax and a simple monthly TDS value using age and deduction inputs.
Retirement & Cash Flow
Retirement & Cash Flow
Retirement planning
Project retirement corpus, lump-sum withdrawal, and annuity-driven pension estimate.
Retirement & Cash Flow
Cash flow planning
Estimate how long a corpus can support regular monthly withdrawals.
Retirement & Cash Flow
Retirement contribution
Estimate the monthly contribution needed to target a desired pension.
Trading & Markets
Trading & Markets
Trading costs
Estimate trading charges using brokerage, taxes, and exchange fees.
Trading & Markets
Position management
Work out your weighted average buy price and current unrealized P&L.
Quick help
Useful notes
Planning note
Use these calculators to compare scenarios quickly, shortlist a suitable input range, and understand how the output changes when you edit a key assumption. Final tax, loan, payroll, broker, or investment values can still differ because of institution-specific charges, declaration data, rate revisions, eligibility checks, and legal requirements.
For regulated or filing-sensitive decisions, confirm the final number with your lender, payroll team, broker, CA, or official product documentation. For workflow automation beyond estimation, the rest of the OneBooks GST+ site covers GST operations, bank statement handling, WhatsApp messaging, pricing, and support.