Popular calculators

Estimate monthly loan payments, total interest, and total repayment.

Estimate take-home pay from salary, effective tax rate, deductions, and pay frequency.

Estimate investment growth with compounding and contributions.

Estimate how long it may take to reach a savings goal.

Estimate how long it may take to pay off debt and how much interest you could pay.

Estimate monthly surplus, savings rate, and spending breakdown from income and expenses.

Estimate future cost and purchasing power after inflation.

Calculate gross profit, margin percentage, and markup from revenue and cost.

Calculate return on investment, net gain, and payback multiple.

Calculate customer acquisition cost from sales, marketing, and new customers.

Estimate customer lifetime value from revenue, gross margin, and churn.

Calculate net new MRR and ending MRR from SaaS revenue movements.

Estimate ecommerce gross profit, net profit, and net margin per order.

Estimate how many units you need to sell to cover fixed costs.

Estimate crypto profit, ROI, fees, and break-even price.

Estimate trading, spread, network, and withdrawal fees for a crypto transaction.

Estimate token swap output after slippage, swap fees, and network fees using manually entered prices.

Calculate implied token price from a target market cap and circulating supply.

Estimate Bitcoin mining revenue, electricity cost, pool fees, profit, break-even days, and ROI from your own BTC reward and price assumptions.

Estimate leveraged crypto position size, profit or loss, ROI on margin, and fee impact from your own entry and exit assumptions.

Estimate a rough crypto liquidation price, distance to liquidation, and percentage move to liquidation from leverage and margin assumptions.

Estimate mortgage payment, PMI, taxes, insurance, extra payments, interest, and payoff timeline.

Estimate an affordable home price from income, debts, down payment, rate, taxes, insurance, and HOA.

Estimate solar payback period, annual savings, and net cost from system cost, incentives, production, and electricity rate.

Estimate buyer closing costs from home price, loan amount, percentage costs, fees, prepaid items, and credits.

Estimate private mortgage insurance cost from home price, down payment, loan amount, and PMI rate.

Compare renting and buying over a chosen time horizon using cash costs, equity, appreciation, and selling costs.

Estimate annual and monthly property tax from value, assessment ratio, exemptions, and tax rate.

Count words, characters, sentences, and estimated reading time from pasted text.

Validate, pretty print, and minify JSON in your browser.

Convert px to rem and rem to px with an adjustable base font size.

Convert colors between HEX, RGB, and HSL with validation and preview.

Count characters, characters without spaces, lines, and UTF-8 bytes.

Check meta title and meta description character lengths with practical SEO length indicators.

Test a path against pasted robots.txt rules locally in your browser.

Estimate body mass index from height and weight.

Estimate daily protein intake from body weight and fitness goal.

Estimate basal metabolic rate and daily energy needs.

Estimate daily calorie deficit and weekly weight-change pace.

Estimate body fat percentage using the US Navy circumference method.

Calculate pace, speed, and estimated finish times from distance and time.

Estimate daily water intake from body weight, exercise, and climate.

Estimate trip cost, daily budget, and per-person travel cost.

Estimate fuel cost from distance, fuel economy, fuel price, and trips.

Convert a travel budget into destination currency with card or exchange fees.

Estimate PTO days needed for a trip after weekends, holidays, and buffer days.

Estimate monthly commute cost from distance, fuel, parking, tolls, and workdays.

Estimate packed luggage weight and remaining allowance before a trip.

Split hotel cost by person from nightly rate, nights, taxes, fees, rooms, and guests.