Keeping everyday costs in check is easier when the numbers are clear. These budgeting tools let you build a full monthly plan with the Budget Calculator, split household or restaurant bills fairly with the Split Bill Calculator, compare long-term EV vs Petrol costs, estimate utility bills with the Electricity Bill Calculator, and work out Prorated Rent when a lease starts mid-month.
Browse the most-used tools in the popularity-ranked list or switch to the Trending tab to see what other households are calculating right now. Everything here is free, works on any device, and needs no sign-up.
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Prorated Rent CalculatorCalculate your exact prorated rent amount with our free calculator. Determine how much you owe when moving in or out mid-month based on your monthly rent and exact move date. Get instant, accurate results for partial rental periods.
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Toothpaste CalculatorEstimate how many days, weeks and months a tube of toothpaste will last based on tube size, household size, brushes per day and amount per use.
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Restaurant Bill with Tax and Tip CalculatorCalculate your full restaurant bill including sales tax and tip. Enter the subtotal, tax %, and tip %, then split the total evenly between any number of people.
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Spending as Percent of Income CalculatorCalculate what percentage of your income goes to a spending category. Enter category spending and total income to see the percent and remaining amount.
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Trip Cost Per Person CalculatorSplit travel expenses fairly with the Trip Cost Per Person Calculator. Enter total cost and group size to get each person's share instantly.
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3x Rent CalculatorUse the 3x rent rule to find the income you need to qualify for a rental, or the maximum rent you can afford based on your monthly income.
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Toilet Paper CalculatorFind out how many days your toilet paper supply will last based on rolls, sheets per roll, household size, and daily usage. Free TP calculator.
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EV vs Petrol Cost CalculatorEnter annual distance, petrol L/100km and price, EV kWh/100km and electricity rate to compare yearly costs and see your estimated savings.
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Group Trip Cost Split CalculatorSplit a group trip's total cost equally and find out exactly who owes whom. Enter what each person paid and get clear settlement payments instantly.
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Cyber Monday Discount CalculatorCalculate your Cyber Monday final price and total savings instantly. Enter the original price and discount percentage to see exactly what you pay.
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Salary Needed for Rent CalculatorFind the annual and monthly gross income you need to qualify for an apartment using the 3x rent rule (30% of income). Free rent affordability calculator.
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Budget CalculatorFree monthly budget calculator. Enter your income and expenses to see money left over, total spending, and your savings rate as a percentage.
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Income Needed for a Purchase CalculatorFind out how much to set aside from each paycheck to reach your savings goal. Enter your target amount and number of paychecks for an instant answer.
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Savings Rate to Retirement CalculatorCalculate your savings rate — the percentage of take-home income you save each period. Enter amount saved and income to see your savings rate instantly.
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Weekly & Monthly Budget Calculator (from an Annual Amount)Convert an annual amount into monthly, bi-weekly and weekly budget figures instantly. Free annual-to-monthly budget calculator with full breakdown.
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50/30/20 Budget CalculatorUse the 50/30/20 budget calculator to split your monthly after-tax income into 50% needs, 30% wants, and 20% savings instantly.
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Percent of Budget Spent CalculatorFind what percentage of your budget you have spent. Enter your total budget and amount spent to see percent used, percent remaining, and money left.
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Monthly Savings Needed for Goal CalculatorFind the monthly deposit needed to reach a savings goal by a target date, accounting for compound investment growth at your expected annual return.
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Combined Household Income CalculatorAdd up the incomes of two or more earners to find your total combined household income per year and per month. Free, fast, and universal.
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Cost of Living Comparison CalculatorCompare the cost of living between two cities. Enter your income and each city's cost index to find the salary needed to keep your lifestyle.
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Quit Smoking Savings CalculatorCalculate how much money you save by quitting smoking. Enter packs per day, price per pack, and years smoke-free to see daily, monthly, and total savings.
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Coffee Spending CalculatorCalculate how much you spend on coffee each day, month and year. Enter cups per day and price per cup to see your true coffee habit cost.
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Subscription Cost CalculatorAdd up all your monthly subscriptions and instantly see your total monthly and yearly spend. Free subscription cost calculator for budgeting.
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Salary Needed for Monthly Expenses CalculatorFind the gross salary you need to cover your monthly expenses after tax. Enter monthly costs and your tax rate to get the required annual income.
Frequently asked questions
What expenses can I plan with these calculators?
You can map out a full monthly budget, calculate layaway payment schedules, estimate electricity bill costs, determine prorated rent for a partial month, balance a checkbook, compare the total long-term cost of an EV versus a petrol car, and split any shared bill fairly among multiple people.
How accurate are the results?
These tools use standard budgeting and billing formulas and are a reliable starting point for personal planning. Actual costs depend on local utility rates, provider pricing, and individual usage. Results are NOT financial advice — consult a qualified financial professional before making significant spending or financing decisions.
Are these tools free to use?
Yes. Every calculator is completely free with no account, subscription, or email address required. Open any tool, enter your numbers, and get an instant breakdown of costs, payments, or savings on any device.
Do you store my budget or expense data?
No. All calculations run entirely in your browser. We do not collect, log, or transmit any of the financial details, bill amounts, or personal figures you enter — your data never leaves your device.
Which budgeting calculators are the most popular?
The list is sorted by real visitor usage, placing the most-visited tools at the top. Open the Trending tab to see which calculators are gaining traction right now, or check Recently Added for the latest additions to this category.
