How the budget calculator works
Budgeting starts with one comparison: money coming in against money going out. This tool sums your spending across five buckets — housing, food, transportation, utilities, and everything else — and subtracts that total from your monthly take-home income.
Whatever remains is your surplus. If the number is positive you are living within your means and have cash left to save, invest, or pay down debt. If it is negative you are spending more than you earn that month, which has to be covered by savings or borrowing.
Reading your savings rate
The savings rate expresses your surplus as a percentage of income, which makes it easy to compare across different income levels. Earning more only helps if the extra is not immediately absorbed by higher spending, and the savings rate is what catches that.
The donut chart shows where each dollar of income goes: a slice for every spending category plus one for the surplus you keep. A large surplus slice is the visual goal — it is the part of your income that is actually building wealth rather than leaving your account.
Tips for a healthier budget
Small, consistent shifts move the surplus more reliably than occasional big cuts:
- Tackle the largest slice first — for most people that is housing, where even a modest change frees up the most cash.
- Automate transfers to savings on payday so the surplus is set aside before it can be spent.
- Track spending for a month against these buckets; the "other" category is often larger than people expect.
- Aim to lift the savings rate by a few points at a time rather than chasing a perfect number overnight.
What this snapshot does not capture
These are monthly figures, so irregular costs — annual insurance premiums, holidays, car repairs, medical bills — do not appear unless you spread them across the year and add a share to the relevant bucket. A budget that ignores these lumpy expenses can look healthier than it really is.
The five categories are deliberately broad. For tighter control, treat the totals here as a starting point and break each bucket into the line items that matter most to you.
Formula
totalExpenses = housing + food + transportation + utilities + other; surplus = income − totalExpenses; savingsRate = surplus / income × 100Frequently asked questions
- What is a good savings rate?
- A common guideline is to save at least 20% of income, but any positive surplus is a good start. The right rate depends on your goals and stage of life.