Tax, Salary & Business
Expense Calculator
Expense: expense Calculator totals the expense lines you enter, compares the total with your income, and shows each line amount in a simple breakdown. Worked through below with real figures, and the calculator repeats the working on your own inputs — free, on-device, instant.
Use Expense Calculator to total your expenses: give it your monthly income and expenses, press Calculate, and read off the total and a line-item breakdown — all worked out on your device.
Estimate only — not financial or accounting advice. Results depend on the figures you enter and exclude taxes, fees and one-off costs unless a field asks for them.
About this calculator
Expense is easiest to get wrong in the setup, not the arithmetic. Expense Calculator totals the expense lines you enter, compares the total with your income, and shows each line amount in a simple breakdown. It matters whenever pay, prices or filings depend on getting the arithmetic right before the paperwork does. The worked example on this page (Monthly expenses of 12,000 + 8,000 + 5,000 + 3,500 = 28,500 ; tracking each category shows where to trim.) shows the full substitution; the calculator above runs the same working on your own numbers, in your browser, with nothing uploaded.
How to use
- Enter your monthly income at the top.
- List each expense on its own line as name, amount.
- Add as many expense lines as you need.
- Tap Calculate to see your surplus or deficit and the breakdown.
Why use the Expense Calculator
Instant
Every figure is computed on your device the moment you tap Calculate.
Private
Your numbers stay in your browser; nothing is sent to a server or saved.
Free
No signup, no paywall, and no ads placed inside your results.
Works offline
Once the page has loaded it keeps working even on a weak connection.
Mobile-first
Laid out for phones and tablets just as much as for desktops.
Honest estimates
Uses simplified, standard formulas for educational estimates; real-world figures vary with local rules, fees, and current rates.
Common uses
Use it when comparing months
Use it when curbing overspending
Use it for a surplus or shortfall check
Use it for household expense tracking
Use it when reviewing where money goes
Use it for a simple spending snapshot
Technical notes
Expense Calculator totals the expense lines you enter, compares the total with your income, and shows each line amount in a simple breakdown.
Figures use the costs, prices and rates you enter and exclude taxes and one-off charges unless a field asks for them.
Nothing you type is uploaded — the calculation happens entirely on your device.
Worked example
Monthly expenses of 12,000 + 8,000 + 5,000 + 3,500 = 28,500; tracking each category shows where to trim.
FAQ
How do I enter expenses in this expense calculator?
Put one expense per line as a name, a comma, and an amount, for example Rent, 15000. The tool reads each line and adds the amounts.
Does the Expense Calculator send my data to a server?
No. The Expense Calculator runs entirely in your browser with JavaScript; the values you enter never leave your device and nothing is uploaded or saved.
What does surplus or deficit mean here?
Surplus is income minus expenses when income is higher; deficit is the shortfall when expenses exceed income. The tool also shows expenses as a percentage of income.
Why was a line rejected?
Each line must be exactly a name and a numeric amount. Lines missing the amount, missing the name, or containing extra commas are flagged so you can fix them.