Tool finder · 62 calculators
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Start with a decision tool
Decision tools
These five go beyond a single figure: they solve backwards from your budget or goal, compare scenarios, and name the input deciding the answer. Everything below is a focused single-answer calculator.
- Decision tool
Vehicle Affordability Calculator
Works backwards from pay, debts and running costs to the vehicle price you can carry — with a stretch limit and the binding constraint named.
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Mortgage Calculator
Payment mode and a reverse affordability mode: solve a home-price range, a comfortable housing cost and a stretch limit from your finances.
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Rent vs Buy Calculator
Projects both paths month by month, finds the break-even year if there is one, and names the assumption deciding the answer.
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Debt Payoff by Extra Payment Calculator
Payoff date, interest saved, ready-made extra-payment scenarios, and the reverse solve for a target debt-free date.
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Take-Home Pay Calculator
Net pay across every pay period, raise and contribution scenarios, and a reverse solve for the gross salary a target take-home needs.
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62 calculators
Loans & Mortgages
Purpose-built tools for this task.
Loans
Mortgage Calculator
Full monthly housing payment including tax, insurance, HOA and PMI — plus an affordability mode that solves backwards to a home-price range and stretch limit.
Loans
Loan Payment Calculator
Monthly payment, total interest, and payoff time for any amortized loan — with an optional extra payment.
Loans
Auto Loan Calculator
Car payment from price, trade-in, tax, and fees — with the financed amount and total interest shown separately.
Loans
Amortization Calculator
Build a full amortization schedule for any fixed-rate loan — payment, total interest, payoff date, and the principal/interest split every year or month.
Equipment
Vehicle Affordability Calculator
Solves backwards from income, debts and running costs to the vehicle price you can carry — plus a stretch limit, scenarios, and the constraint driving it.
Loans
Negative Equity Auto Loan Calculator
See what rolling an upside-down trade-in into a new car loan really adds to the payment, the interest and the loan-to-value.
Loans
Debt-to-Income Ratio Calculator
Front-end and back-end DTI from income, housing and monthly debt payments.
Loans
Simple Interest Calculator
Simple interest, total amount and yearly interest from principal, rate and time.
Loans
Auto Loan Refinance Calculator
Compare your current car loan to a refinance: payment, interest, fees and break-even.
Take-Home Pay
Purpose-built tools for this task.
Pay
Take-Home Pay Calculator
Estimated net pay per week, fortnight, month and year — with raise and contribution scenarios and a reverse solve for the salary a target take-home needs.
Pay
Paycheck Withholding Calculator
See exactly what gets withheld from one paycheck — federal, state, FICA, and extra withholding — and what lands in your account.
Pay
Commission Calculator
Commission earned and total pay from sales, rate, base pay and quota.
Percentages
Purpose-built tools for this task.
Everyday
Percentage Calculator
What is X% of Y, X is what percent of Y, and percentage increase or decrease between two numbers.
Everyday
Percentage Change Calculator
Percent increase or decrease from an old value to a new one, with zero-start and negative-value handling.
Everyday
Percentage Difference Calculator
Symmetric percent difference between two values, shown next to percent change in both directions.
Everyday
Fraction to Percent Calculator
Turn any fraction into a percent and decimal, with the simplified fraction.
Everyday
Add or Subtract Percentage Calculator
Add or subtract a percentage from any number, with the amount and the reverse.
Property & Rental
Purpose-built tools for this task.
Property
Home Affordability by Salary Calculator
The home price, loan and monthly housing payment your gross salary supports under adjustable 28/36 ratios.
Property
Rent vs Buy Calculator
Year-by-year cost and equity for both paths, the break-even year, and the single assumption deciding the verdict.
Property
Rent-to-Own vs Buy Calculator
Cash spent and equity built under a rent-to-own agreement versus buying the same home now, over the same period.
Property
Rental Property Cash Flow Calculator
Screen a rental in one pass: mortgage payment, operating expenses, cash flow, cap rate, and cash-on-cash return.
Pay Conversions
Purpose-built tools for this task.
Pay
Salary to Hourly Calculator
Turn an annual salary into an hourly rate, adjusted for the hours you actually work and your paid leave.
Pay
Hourly to Salary Calculator
Annual, monthly, biweekly, and weekly pay from an hourly rate, including regular overtime.
Pay
Raise Percentage Calculator
Work out your raise percentage, new pay, and how much extra you'll actually see per paycheck.
Pay
Gross Pay per Pay Period Calculator
Hourly rate to gross pay per weekly, biweekly, semi-monthly and monthly paycheck.
Savings & Investing
Purpose-built tools for this task.
Savings
Compound Interest Calculator
Ending balance, total contributions, and interest earned for any rate, term, and compounding frequency.
Savings
Savings Growth Calculator
Project a savings balance from deposits, or solve for the monthly amount needed to hit a goal.
Savings
ROI Calculator
Net gain, ROI percentage, and annualized return for any investment or business spend.
Debt Payoff
Purpose-built tools for this task.
Loans
Debt Payoff Calculator
Amortize any balance month by month to get the payoff date, total interest, and the effect of paying extra.
Loans
Debt Payoff by Extra Payment Calculator
Payoff date, interest saved and side-by-side extra-payment scenarios — plus the reverse solve for a target debt-free date.
Loans
Credit Card Payoff Calculator
Solve a card balance either way — payment to payoff time, or target months to the required payment.
Equipment & Transportation
Purpose-built tools for this task.
Equipment
Vehicle Total Cost of Ownership Calculator
What a vehicle really costs over the years you keep it — depreciation, interest, fuel, insurance and upkeep — per month, year and mile.
Equipment
Equipment Cost Per Hour Calculator
Break a machine into ownership, fuel, and maintenance cost per hour so you can price work and compare renting.
Equipment
Equipment Total Cost of Ownership Calculator
Lifetime cost of a machine — depreciation, financing, fuel, upkeep, insurance and storage — as a total, per year and per operating hour.
Equipment
Equipment Rent vs Buy Calculator
Annual cost to own versus rent a machine, and the break-even days of use.
Household Budgeting
Purpose-built tools for this task.
Everyday
Budget Allocation Calculator
Needs, wants, and savings dollar targets from take-home pay, using a standard split or your own percentages.
Everyday
Unit Price Comparison Calculator
Which of two or three products is the better deal, once price and package size are normalized to the same unit.
Business Metrics
Purpose-built tools for this task.
Business
Profit Margin Calculator
Gross profit and margin from revenue and cost, plus the price needed to hit a target margin.
Business
Markup vs Margin Calculator
Convert markup to margin or the reverse, with the resulting price and profit on any cost.
Business
Job Profit Calculator
Gross and net profit on a job, margin vs markup, break-even price, and the price needed to hit a target margin.
Business
Break-Even Revenue Calculator
Turn fixed monthly costs and gross margin into the revenue you must book each month — and each day — to break even.
Discounts & Everyday Math
Purpose-built tools for this task.
Everyday
Discount Calculator
Sale price and savings from one or two discounts, with optional sales tax on the discounted price.
Everyday
Sales Tax Calculator
Add sales tax to a subtotal, or reverse it out of a total that already includes tax.
Everyday
Tip Calculator
Tip amount, bill total, and the split per person — with an option to tip pre-tax.
Hours & Overtime
Purpose-built tools for this task.
Pay
Overtime Pay Calculator
Split a pay period into regular, overtime, and double-time pay, then see total gross pay and the blended effective hourly rate.
Pay
Time Card Calculator
Turn clock-in and clock-out times into paid hours, an overtime split, and gross pay for the week.
Pay
Shift Differential Calculator
Add a night, weekend, or hazard shift differential to hourly pay and get the correctly blended overtime rate.
Dates & Time
Purpose-built tools for this task.
Reimbursements
Purpose-built tools for this task.
Construction & Trades
Purpose-built tools for this task.
Construction
Concrete Calculator
Turn slab or round-column dimensions into cubic yards, cubic metres, and 40, 60, and 80 lb bag counts, with waste and cost included.
Construction
Square Footage Calculator
Measure a room or area in feet and inches and get square feet, square yards, square metres, a waste-adjusted total, and the number of boxes to buy.
Construction
Construction Material Quantity Calculator
Turn slab, footing, column, gravel, or topsoil dimensions into cubic yards, bags, tons, and an estimated material cost.
Construction
Construction Material Markup Calculator
Apply markup to material cost and see the customer price, gross profit dollars, and the resulting gross margin.
Construction
Job Bid Calculator
Build a job price from labor, materials and other costs plus contingency, overhead and a target profit margin.
Construction
Labor Markup Calculator
Turn a base wage into a bill rate: add labor burden, apply markup, and see the real margin per hour.
Construction
Labor Burden Calculator
Add payroll tax, workers comp, benefits, and other burden to a wage to get your true hourly labor cost.
Construction
Paint Calculator
Paintable wall area, gallons to buy and cost for a room.
Construction
Gravel Calculator
Gravel, crushed stone or road base in cubic yards, tons and cost.
Agriculture & Feed
Purpose-built tools for this task.
Agriculture
Feed Consumption Calculator
Turn beginning inventory, deliveries, and ending inventory into total feed used, feed per day, and lb per animal per day.
Agriculture
Feed Cost Per Animal Calculator
Take feed price per ton and total feed used and get total cost, cost per head, and cost per head per day.
Agriculture
Hay Cost Calculator
Hay needed, bales to buy, cost per pound and ton, and cost per animal per day — with feeding waste included.