Money and financial planning: budget, savings and debt calculators
Free money tools that run privately in your browser
Money planning starts with clarity: how much comes in, how much goes out and what you want the difference to do. The tools in this category help you answer those questions without handing your figures to anyone. Everything is calculated in your browser, nothing is uploaded and no account is needed. Each calculator shows its assumptions, so you can see how the answer was reached and check it.
These tools provide general information and are not financial advice. For decisions about borrowing, investing, tax or retirement, speak to a qualified professional in your country.
Budgeting tools
Choose the budgeting tool that matches how you like to work. The budget calculator is the quickest: enter income and expenses and see what is left and your savings rate. The free budget planner adds a planned and actual column, so you can compare your plan with real spending. The monthly budget planner organises income into needs, wants and savings with editable targets. If you prefer to work in Excel, Google Sheets or Numbers, the budget spreadsheet template creates a CSV with the formulas built in, in a one-month or a whole-year layout.
Savings and debt calculators
The savings goal calculator tells you the regular amount to put aside to reach a target by a date, with optional interest and a period-by-period schedule. The debt payoff calculator takes your balances, interest rates and minimum payments, and compares the avalanche method (highest rate first) with the snowball method (smallest balance first), showing the debt-free time and total interest.
Used together, they answer the two biggest questions in personal finance: how do I build what I need and how do I clear what I owe?
Planning for a wedding
A wedding is often the largest one-off spending decision a couple makes. The wedding budget calculator splits your total across categories such as venue, catering and photography, lets you edit the shares to match real quotes and tracks what you spend against each. Pair it with the savings goal calculator to plan how to fund it, and the event planning checklist and wedding seating chart for the rest of the planning.
A simple money routine
- Find your monthly number with the budget calculator.
- Decide where it goes using the monthly budget planner or free budget planner.
- Set targets with the savings goal calculator.
- Test extra debt payments with the debt payoff calculator.
- Review monthly and adjust.
Common budgeting mistakes
- Forgetting irregular costs such as insurance, gifts and car repairs. Divide annual costs by twelve.
- Budgeting with gross rather than take-home income.
- Cutting everything at once. Gradual changes last longer.
- Never checking the plan against actual spending.
Understanding the key terms
Take-home income is what reaches your account after tax and deductions, and it is the right figure for a budget. Savings rate is the share of income you keep after spending, shown as a percentage. APR, the annual percentage rate, is the yearly cost of borrowing, and the debt payoff calculator uses it to estimate monthly interest. Minimum payment is the smallest amount a lender requires each month. Needs, wants and savings are the three groups used by the monthly budget planner. Knowing these terms makes the results easier to read and discuss.
Where to start if money feels stressful
Begin with information, not judgement. Spend ten minutes with the budget calculator and your last two months of statements. The number you find is simply a fact, and facts can be changed. Next, choose one small action: cancel a forgotten subscription, set up a modest automatic transfer to savings or list your debts with their rates. If debt feels overwhelming, free and independent debt advice services exist in many countries, and speaking to one can help. Small, steady steps beat dramatic overnight plans.
Questions about money tools
Do these tools connect to my bank? No. You enter the figures yourself, which keeps your finances private. Can I change the currency? Yes, the currency setting changes the symbol and formatting only; there is no conversion. How accurate are the results? The arithmetic is exact, but the results depend on your inputs and assumptions, so treat them as a guide. Is any of this advice? No. It is general information only.
Choosing between a calculator, a planner and a spreadsheet
A calculator gives a quick answer to one question and is ideal when you want a snapshot. A planner keeps a running record, comparing what you planned with what happened, and suits monthly management. A spreadsheet gives you full control and suits people who enjoy building their own system. Many people start with the calculator, move to a planner after a month or two and switch to a spreadsheet only if they want charts and custom formulas. Whichever you choose, the habit of looking at your numbers regularly matters more than the tool.
Privacy and limits
Your figures are processed in your browser and are not sent to Just Plann. Interest and returns are assumptions, not promises, and taxes and fees are not included unless stated. Read the disclaimers page for details.