39+ Free Calculators

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Free calculators for rent, bills, tips, trips, and more. Get a Fairness Score and shareable results in seconds.

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Fair results in 30 seconds

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Rent amount, room sizes, incomes, or bill totals. Takes under 30 seconds.

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AI analyzes room features, incomes, and fairness factors to calculate each share.

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Send a link with your Fairness Score. Data-driven results — no more arguments.

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39+ free tools for every split

From rent and bills to weddings and business profits.

Splitting Tools

Split rent, bills, tips, and expenses fairly with AI-powered calculations.

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Rent Split

Rent split calculator that divides rent fairly by room size, bathrooms, closets, and income. Free AI Fairness Score and shareable results — no sign-up needed.

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Bill Split

Split bill calculator for restaurants and group expenses. Divide by item, calculate tax and tip per person, and share results — 100% free, no sign-up.

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Trip Expenses

Track and split trip expenses between friends. See who owes whom with optimized settlement.

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Settle Up

Track shared expenses with roommates and settle up fairly at the end of each month.

Grocery Split

Split grocery and household costs fairly based on diet type, meals at home, and personal items.

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Couple Split

Calculate fair rent when a couple shares one room with single roommates. Per-person vs per-room methods compared.

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Utility Split

Split electricity, gas, water, and internet fairly based on usage patterns, room size, and work-from-home schedules.

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Tip Split

Tip calculator that splits tips fairly between any group. Choose tip percentage, split evenly or by order, and round up for easy payments. Free — no sign-up.

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Party Food

Calculate how much food and drinks to buy for your party. Get quantities, cost estimates, and split the bill between contributors.

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Vacation Split

Plan and split vacation costs before your trip. Assign flights, hotels, activities, and food costs to travelers fairly.

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Gas Split

Split gas costs and road trip expenses between passengers. Calculate fuel costs by distance, MPG, and gas price with optional driver premium.

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Deposit Split

Split security deposits fairly when moving in or out with roommates. Handle damage deductions and pro-rata refunds.

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Life Event Splits

Split costs for weddings, co-parenting, childcare, and business partnerships.

Wedding Split

Wedding cost calculator to split expenses between families and the couple. Compare traditional, modern, and custom methods. Free — no sign-up.

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Co-Parenting

Split child-related expenses fairly between co-parents based on income, custody split, and expense categories.

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Profit Split

Calculate fair equity and profit splits between business partners based on capital invested, time contributed, and roles.

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Nanny Share

Calculate how much each family saves by sharing a nanny. Split costs by number of children and see annual savings.

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Financial Calculators

Calculate rent affordability, true costs, DTI ratios, and more.

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Affordability

How much rent can I afford? Enter your income and debts to get safe, comfortable, and stretch rent budgets using the 30% rule. Free calculator — no sign-up.

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Move-In Costs

Calculate total first apartment move-in costs including deposits, first/last month, broker fees, furniture, and setup expenses.

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50/30/20 Budget

Build a complete renter budget using the 50/30/20 rule. See exactly how much to spend on needs, wants, and savings.

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Rent to Income

Check if you qualify for an apartment using the 3x rent rule. Calculate income needed and see if you pass the 40x annual test.

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Prorated Rent

Calculate exact prorated rent for partial months when moving in or out mid-month. Multiple calculation methods.

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DTI Calculator

Calculate your debt-to-income ratio and find out how much rent you can afford. See if you qualify for apartments based on DTI requirements.

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True Cost

Calculate the real monthly cost of any apartment including hidden expenses like commute, utilities, parking, laundry, and fees.

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Roommate Tools

Solve common roommate disputes with data, not arguments.

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Betrayal Score

Is your roommate overcharging you? This calculator scores your rent split fairness and shows exactly how much you may be overpaying. Free — get the receipts.

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Rent Increase

Analyze your rent increase — see if it's fair, legal in your state, and get negotiation talking points.

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Chore Split

Chore split calculator that divides household tasks fairly based on schedules, preferences, and effort. Get a weighted Fairness Score — free, no sign-up.

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Freeloading Index

Score your roommate from 0 (equal partner) to 100 (total freeloader). Measures financial AND non-financial contributions. Shareable results with auto-generated roast.

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Splitter Type

Take the 7-question quiz to discover your money splitting personality. Are you The Scorekeeper, The Ghost, The Diplomat, or The Mooch? Shareable results — challenge your roommates.

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