Free Online Calculators & Tools
Fast, modern, and privacy-friendly calculators, converters, and PDF tools. No signup. No tracking.
Mortgage Calculator
Calculate monthly payments, total interest, and amortization schedule for your home loan.
FinanceCompound Interest Calculator
See how your money grows with compound interest over time with regular contributions.
FinanceLoan Payment Calculator
Calculate monthly payments for any personal, auto, or student loan.
FinanceInvestment Return Calculator
Calculate your return on investment (ROI) and annualized returns.
FinanceSavings Goal Calculator
Find out how much you need to save monthly to reach your financial goal.
FinanceCredit Card Payoff Calculator
Calculate how long to pay off credit card debt and total interest paid.
FinanceRetirement Calculator
Plan your retirement savings and see if you're on track for your goals.
FinanceROI Calculator
Calculate return on investment percentage and net profit from any investment.
CryptoCrypto Profit Calculator
Calculate your profit or loss from cryptocurrency trades including fees.
CryptoDCA Calculator
See the results of dollar-cost averaging into Bitcoin, Ethereum, or any crypto.
CryptoImpermanent Loss Calculator
Calculate potential impermanent loss when providing liquidity to DeFi pools.
CryptoStaking Rewards Calculator
Estimate your staking rewards based on APY, amount staked, and compounding period.
MathPercentage Calculator
Calculate percentages: what is X% of Y, percentage change, increase and decrease.
MathAge Calculator
Calculate exact age in years, months, and days from your date of birth.
MathTip Calculator
Calculate tip amount and split the bill between friends at restaurants.
MathDate Difference Calculator
Find the exact number of days, weeks, months, and years between two dates.
HealthBMI Calculator
Calculate your Body Mass Index and see where you fall on the BMI scale.
HealthCalorie Calculator
Calculate your daily caloric needs based on age, weight, height, and activity level.
ConverterUnit Converter
Convert between units of length, weight, temperature, volume, and more.
ConverterCurrency Converter
Convert between world currencies with live exchange rates.
PDFMerge PDF
Combine multiple PDF files into one document. Fast and free, no upload to servers.
PDFSplit PDF
Extract specific pages or split a PDF into multiple files. Works entirely in your browser.
PDFCompress PDF
Reduce PDF file size while maintaining quality. No file leaves your device.
PDFPDF to Image
Convert PDF pages to high-quality JPG or PNG images. 100% client-side.