Calculators
46 calculators, each with the formula written out and a worked example you can check by hand. Switch any of them between dollars, pounds, euros, Canadian and Australian dollars, and rupees.
01
Loans & mortgages
Mortgage, auto loan, lease, refinance, credit card and student loan calculators, with every formula shown.
- Loan EMI CalculatorCalculate your monthly EMI, total interest and total repayment for a home, car or personal loan. Uses the standard reducing-balance EMI formula.
- Mortgage CalculatorEstimate your monthly mortgage payment including principal, interest, property tax, homeowners insurance, HOA and PMI.
- Auto Loan CalculatorEstimate your monthly car payment from price, down payment, trade-in, sales tax, APR and term. See the amount financed and total interest.
- Car Lease CalculatorWork out a monthly lease payment from the negotiated price, residual value, money factor, term and sales tax. Includes the APR equivalent.
- Home Affordability CalculatorEstimate the home price you can afford from income, monthly debts, down payment, mortgage rate and property costs, using the 28/36 rule lenders use.
- Mortgage Refinance CalculatorSee whether refinancing your mortgage pays off: new monthly payment, monthly savings, months to recoup closing costs and lifetime cost difference.
- Credit Card Payoff CalculatorFind out how many months it takes to pay off a credit card balance at a fixed monthly payment, and how much interest you'll pay.
- Debt Consolidation CalculatorCompare paying off your current debts with a debt consolidation loan: monthly payment, total cost, origination fee and how much you save.
- Personal Loan CalculatorCalculate the monthly payment and true cost of a personal loan, including the origination fee and the amount you actually receive.
- Student Loan CalculatorCalculate your student loan payment on a standard plan and see how much time and interest an extra monthly payment saves.
- Home Equity Loan CalculatorEstimate how much you can borrow against your home based on its value, your mortgage balance and the lender's maximum loan-to-value, plus the monthly payment.
02
Savings, retirement & insurance
Retirement, 401(k), SIP, CDs, compound interest, inflation and life insurance needs.
- SIP CalculatorEstimate the maturity value of a monthly SIP from the amount, expected annual return and duration. Shows invested amount and estimated gains.
- FD CalculatorCalculate fixed deposit maturity value and interest from deposit amount, interest rate, tenure and compounding frequency (quarterly by default).
- Compound Interest CalculatorSee how savings grow with compound interest. Enter a starting amount, monthly contribution, interest rate, years and compounding frequency.
- Retirement CalculatorProject your retirement savings from current savings, monthly contributions and expected returns, then see the income it supports with the 4% rule, in today's money.
- 401(k) CalculatorProject your 401(k) balance from salary, contribution rate, employer match, current balance and expected return. Shows how much the match adds.
- Savings Goal CalculatorFind the monthly amount you need to save to reach a target by a deadline, counting what you've already saved and the interest it earns.
- Inflation CalculatorSee what something will cost in the future at a given inflation rate, and how much purchasing power today's money loses over time.
- CD CalculatorCalculate what a certificate of deposit will be worth at maturity from the deposit, APY and term in months, and compare it with inflation.
- Life Insurance CalculatorEstimate how much life insurance you need with the DIME method: debts, income replacement, mortgage and education, minus savings and existing cover.
03
Real estate
Rent vs buy, cap rate and rental cash flow for home buyers and property investors.
- Rent vs Buy CalculatorCompare the true cost of buying a home with renting over the years you plan to stay, counting equity, appreciation, selling costs and the return on your savings.
- Cap Rate CalculatorCalculate a rental property's net operating income and cap rate from price, rent, vacancy and operating expenses. Compare deals on equal terms.
- Rental Property CalculatorAnalyse a buy-to-let or rental property: monthly cash flow after mortgage and expenses, cash invested and cash-on-cash return.
04
Home service pricing
Quote calculators for cleaning, lawn care, painting, roofing, moving and more. Embed any of them on your own site.
- House Cleaning Price CalculatorEstimate a house cleaning price from square footage, cleaning type and frequency. Standard, deep and move-out rates with recurring discounts.Embeddable · captures leads
- Lawn Mowing Price CalculatorWork out what to charge for lawn mowing by lawn size, grass condition and extras like edging and bagging. See per-cut, monthly and seasonal totals.Embeddable · captures leads
- Interior Painting Cost CalculatorEstimate interior painting cost from floor area, wall height, coats and paint price. Shows paint gallons needed, labor, materials and total.Embeddable · captures leads
- Roof Replacement Cost CalculatorEstimate the cost of a new roof from home size, roof pitch and material. Converts footprint to roofing squares and prices tear-off and disposal.Embeddable · captures leads
- Local Moving Cost CalculatorEstimate what local movers will cost from home size, crew size, hourly rate and travel time. Includes minimum hours, packing and tip.Embeddable · captures leads
- Solar Panel Payback CalculatorSize a home solar system from your electric bill and estimate cost, yearly savings and payback period. Updated for the end of the 30% residential tax credit.Embeddable · captures leads
- Pressure Washing Cost CalculatorPrice a pressure washing job by surface and square footage. Covers driveways, house siding, decks and roofs, with stain treatment and minimum charge.Embeddable · captures leads
- Window Cleaning Price CalculatorQuote residential window cleaning by number of windows, inside or outside, storeys and screens. See price per visit and per window.Embeddable · captures leads
05
Business math
Margins, markups, break-even, ROI and unit economics: the numbers every small business owner checks.
- Profit Margin CalculatorEnter cost and selling price to get gross profit, profit margin percentage and the equivalent markup. Includes the formula and worked examples.
- Markup CalculatorFind your selling price from cost and markup percentage, and see the resulting profit and margin. Shows the markup-to-margin conversion.
- Break-Even CalculatorCalculate how many units you must sell each month to break even, from fixed costs, price and variable cost per unit. Includes target-profit planning.
- ROI CalculatorCalculate return on investment and annualized ROI from the amount invested, the amount returned and the holding period.
- LTV to CAC Ratio CalculatorCalculate customer lifetime value, LTV:CAC ratio and CAC payback months from revenue per customer, gross margin, churn and acquisition cost.
06
Freelance & agency
Rates, project quotes and take-home pay for people who sell their time.
- Freelance Hourly Rate CalculatorWork out the hourly rate you need from your income goal, business expenses, taxes, time off and billable hours. For freelancers, consultants and agencies.
- Website Design Cost CalculatorEstimate the cost and timeline of a website project from pages, design level and features like e-commerce, CMS, copywriting and SEO.
- Wedding Photography Pricing CalculatorPrice a wedding photography package from coverage hours, second shooter, engagement session and album. Shows your real hourly rate including editing.
- Hourly to Salary CalculatorConvert an hourly wage to yearly, monthly, biweekly and weekly pay. Adjust hours per week, paid weeks and overtime.
07
Tax
GST, VAT and sales tax, forwards and backwards.
- GST Calculator (India)Add GST to a price or remove GST from an inclusive amount using the current 0%, 3%, 5%, 18% and 40% rates. Shows CGST, SGST and IGST.
- Sales Tax CalculatorAdd sales tax to a price or work backwards from a tax-inclusive total. Combine state and local rates for an exact figure.
- VAT CalculatorAdd VAT to a net price or remove VAT from a gross price. Includes UK, EU, Australian GST, Canadian GST/HST and UAE rates, or enter your own.
08
Everyday maths & health
Percentages, discounts and BMI, explained step by step.
- Percentage CalculatorWork out a percentage of a number, what percent one number is of another, and the percentage increase or decrease between two numbers.
- Discount CalculatorFind the sale price and how much you save, including stacked discounts (like 30% off then an extra 10%) and sales tax.
- BMI CalculatorCalculate body mass index from height and weight in metric or imperial units, and see the healthy weight range for your height.