💡 Affordability & Rules of Thumb

9 calculators in this category.

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Quick checks before a big decision: how much rent or car you can afford, what home loan you may be eligible for, how big your emergency fund should be, and simple rules such as 50/30/20 budgeting and the rule of 72.

50/30/20 Budget

Split your monthly take-home salary with the 50/30/20 budget rule — 50% needs, 30% wants, 20% savings — and see yearly totals, what belongs in each bucket and what your savings can grow to.

Rule of 72

Estimate how many years it takes to double your money at a given annual return.

Home Loan Eligibility

Calculate how much home loan you are eligible for on your salary, using the FOIR method banks use, plus your EMI, the home price you can afford with your down payment and the conservative 28/36 rule.

Rent Affordability

Find how much rent you can afford on your salary using the 30% rule, a comfortable 25% level and a budget 20% level, plus security deposit and what is left for other spending.

Car Affordability

How much car you can afford, using the 20/4/10 rule (20% down, 4-year loan, 10% of income).

Emergency Fund

How much to keep in an emergency fund, based on your monthly expenses.

Debt-to-Income Ratio

What percentage of your income goes to debt payments, and what that means for borrowing.

Retirement Savings Rule

How much to save monthly (15% rule) and how large a retirement corpus you need (25x / 4% rule).

100 Minus Age Rule

Estimate a simple equity-vs-bond asset allocation using the 100-minus-age rule.

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