Free Online Calculator

Budget Calculator

Plan a monthly budget and compare it with the 50/30/20 guide.

Last updated: Free, no sign-up Private — runs in your browser

Quick answer: the 50/30/20 rule

Spend about 50% on needs, 30% on wants and 20% on savings and debt. On ₹80,000 income with ₹70,000 of expenses you have ₹10,000.00 left each month.

Overview of the Budget Calculator

A budget shows where your money goes. Enter your monthly take-home income and list your expenses, marking each as a need, a want or savings/debt. The calculator shows your surplus or shortfall, your savings rate and how your spending compares with the popular 50/30/20 guide.

The 50/30/20 split is a guide, not a rule — high rents may push needs above 50%. Build savings with the Savings Calculator, check housing costs with the Rent Calculator and clear debts with the Debt Payoff Calculator.

How We Calculate

The calculator applies the standard financial formulas step by step.

  1. Add up all expenses and group them as needs, wants and savings/debt.
  2. Surplus = income − total expenses.
  3. Share of each group = group total ÷ income.
  4. Compare with 50% needs, 30% wants and 20% savings/debt.
surplus = income − expenses   savings rate = (surplus + savings and debt payments) ÷ income
Worked example — budget calculator
ItemValue
Monthly income₹80,000.00
Total expenses₹70,000.00
Surplus₹10,000.00
Savings rate (surplus + savings/debt)41.3%
50 / 30 / 20 guide
GroupYour amountYour shareGuide
Needs₹35,000.0043.8%50%
Wants₹12,000.0015%30%
Savings / debt₹23,000.0028.8%20%
Monthly surplus for the same expenses
CaseLeft over
Income ₹60,000₹10,000.00
Income ₹80,000₹10,000.00
Income ₹1,00,000₹30,000.00
Income ₹1,50,000₹80,000.00
Income ₹70,000₹0.00

Budget Calculator — Frequently Asked Questions

What is the 50/30/20 rule?

A budgeting guide: 50% of take-home pay for needs, 30% for wants and 20% for savings and debt repayment.

What counts as a need?

Rent, groceries, utilities, transport to work, insurance and minimum debt payments.

What counts as a want?

Dining out, entertainment, subscriptions, travel and non-essential shopping.

How much should I save?

Many planners suggest at least 20% of take-home pay, including debt repayment beyond the minimums.

What if I am over budget?

Look at wants first, then negotiate recurring bills; check the shortfall line to see how much to cut.

Should I include irregular expenses?

Yes — divide annual costs such as insurance and festivals by 12 so they do not surprise you.

How is the budget calculator calculated?

It uses the standard formula: surplus = income − expenses   savings rate = (surplus + savings and debt payments) ÷ income The full method and a worked example are shown on this page.

Is this financial advice?

No. The calculator gives estimates for planning and learning. Real offers vary by lender, product and date, so confirm the details with your bank, lender or a qualified adviser before deciding.

Can I use another currency?

Yes. The maths is identical in any currency; only the currency symbol shown in the results differs.

Is my data stored?

No. Everything is calculated in your browser and nothing you enter is uploaded or saved.

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