Popular tools
Popular calculators
Start with the calculators people are most likely to use for everyday decisions, planning, and quick estimates.
Showing 45 of 45 Calculators.
Loan Payment
Estimate monthly loan payments, total interest, and total repayment.
FinanceSavings Goal
Estimate how long it may take to reach a savings goal.
FinanceCompound Interest
Estimate investment growth with compounding and contributions.
FinanceVAT
Add or extract VAT from a price and see net, tax, and gross totals.
FinancePercentage
Calculate percentages, increases, decreases, and simple percentage totals.
FinanceProfit Margin
Calculate gross profit, margin percentage, and markup from revenue and cost.
BusinessROAS
Calculate return on ad spend from revenue and advertising cost.
MarketingAd Revenue
Estimate monthly website ad revenue from pageviews, RPM, and fill rate.
MarketingHosting Cost
Estimate monthly website hosting costs from plan, traffic, storage, backups, and support.
TechAI Hardware
Estimate VRAM and RAM needs for running local AI models.
TechBMI
Estimate body mass index from height and weight.
HealthTravel Budget
Estimate trip cost, daily budget, and per-person travel cost.
TravelCar Ownership
Estimate monthly and annual cost of owning a car.
AutomotiveRent Affordability
Estimate affordable rent based on income, debts, and target rent ratio.
Real EstateAspect Ratio
Simplify aspect ratios and calculate matching dimensions.
Developer ToolsMortgage Payment
Estimate mortgage principal, interest, taxes, insurance, and HOA payments.
Real EstateSalary After Tax
Estimate take-home pay from salary, effective tax rate, deductions, and pay frequency.
FinanceInflation
Estimate future cost and purchasing power after inflation.
FinanceROI
Calculate return on investment, net gain, and payback multiple.
BusinessAI Token Cost
Estimate AI API token costs from input tokens, output tokens, and request volume.
TechConcrete
Estimate concrete volume, cubic yards, and bag quantities with waste.
ConstructionCrypto ROI
Estimate crypto profit, ROI, fees, and break-even price.
CryptoDebt Payoff
Estimate how long it may take to pay off debt and how much interest you could pay.
FinanceEmergency Fund
Estimate a practical emergency fund target and how long it may take to save it.
FinanceRetirement Savings
Estimate future retirement savings from current balance, contributions, return, and target.
FinanceCard Interest
Estimate credit card payoff time and interest from APR, payment, and monthly charges.
FinanceAuto Loan
Estimate car loan payments after down payment, trade-in, tax, fees, rate, and term.
AutomotiveBudget Planner
Estimate monthly surplus, savings rate, and spending breakdown from income and expenses.
FinanceMarkup
Calculate selling price, markup, gross profit, and margin from cost.
BusinessCAC
Calculate customer acquisition cost from sales, marketing, and new customers.
BusinessLTV
Estimate customer lifetime value from revenue, gross margin, and churn.
BusinessChurn Rate
Calculate customer churn rate, retention rate, and ending customers.
BusinessAPI Cost
Estimate API request costs from request volume, token usage, and per-million pricing.
TechProtein Intake
Estimate daily protein intake from body weight and fitness goal.
FitnessTile
Estimate tiles, boxes, waste, and material cost for a floor or wall.
ConstructionFuel Cost
Estimate fuel cost from distance, fuel economy, fuel price, and trips.
TravelStudy Time
Estimate total study hours, daily targets, and review time before a deadline.
EducationExam Countdown
Plan remaining study hours, sessions, and daily load before an exam date.
EducationWord Count
Count words, characters, sentences, and estimated reading time from pasted text.
Developer ToolsCSS Clamp
Generate a CSS clamp() expression from min and max size and viewport widths.
Developer ToolsJSON Size
Estimate JSON byte size, minified size, and parse validity from pasted JSON.
Developer ToolsGrocery Budget
Estimate monthly grocery budget, per-person cost, and buffer from weekly spending.
LifestyleCurrency Travel Budget
Convert a travel budget into destination currency with card or exchange fees.
TravelVacation Days
Estimate PTO days needed for a trip after weekends, holidays, and buffer days.
TravelCrypto Fee
Estimate trading, spread, network, and withdrawal fees for a crypto transaction.
Crypto