Skip to content
Free Tool Arena

Money & Finance · Free tool

Monthly Budget Calculator

Enter your income and expenses, see what's left, and spot where you can cut. A simple monthly budget calculator that works.

Updated April 2026

Monthly income

Monthly expenses

Income

$4500.00

Expenses

$2930.00

Left over

$1570.00

Savings rate

34.9%

Great — you're saving 20%+ of income. Keep automating it.

What it does

A monthly budget calculator that shows, at a glance, whether you’re actually saving money. Enter your take-home pay, fill in your real expense categories, and see income, expenses, leftover, and savings rate — plus a color-coded bar so you know where you stand without reading a spreadsheet.

A healthy starting target is 20% of income into savings. 10–20% is reasonable; under 10% means one surprise expense knocks you over; negative means spending is outrunning income and needs urgent attention. The defaults are realistic US numbers — override every field with your own to get a picture that reflects your real life.

How to use it

  1. Enter your monthly take-home pay (after tax).
  2. Fill in each expense row with a typical month's figure.
  3. Read the leftover amount and savings rate.
  4. Adjust until you're saving at least 10–20%.