Calculators

ClientSide

Percentage Calculator

Calculate %, percentage increases, and differences instantly.

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ClientSide

Age Calculator

Find your exact age in years, months, days, and hours.

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ClientSide

Date Difference

Calculate the exact number of days, months, and years between two dates.

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ClientSide

Time Duration

Calculate elapsed time and decimal hours between two times.

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ClientSide

Discount Calculator

Calculate sale prices, stacked discounts, and total savings.

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ClientSide

Tip Calculator

Calculate tips and split restaurant bills evenly among friends.

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ClientSide

Average Calculator

Calculate Mean, Median, Mode, Range, and Standard Deviation.

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ClientSide

Length Converter

Convert between meters, feet, inches, miles, kilometers, and yards.

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ClientSide

Weight Converter

Convert weight between kilograms, pounds, ounces, grams, and stones.

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ClientSide

Temperature Converter

Convert temperatures between Celsius, Fahrenheit, Kelvin, and Rankine.

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ClientSide

Area Converter

Convert area between square meters, square feet, acres, and hectares.

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ClientSide

Volume Converter

Convert volume between liters, gallons, cups, fluid ounces, and milliliters.

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ClientSide

Loan & Mortgage Calculator

Calculate loan repayments and amortization schedules for US, UK, EU, AU, NZ & CA.

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ClientSide

VAT & Sales Tax Calculator

Calculate VAT & sales tax for US, UK, EU, Canada, AUS, NZ — add or reverse tax instantly.

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ClientSide

Salary & Wage Calculator

Convert hourly to annual salary and all pay periods for US, UK, EU, AU, NZ & CA.

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ClientSide

Compound Interest Calculator

Calculate compound interest and investment growth for US, UK, AU, NZ, CA & EU accounts.

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ClientSide

Gross Margin & Markup Calculator

Calculate gross margin, markup %, and profit for your business — with sector benchmarks.

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PDF Tools

Fast, free, and secure utilities to merge, split, compress, and convert PDF documents.

Image Tools

Resize, compress, crop, and convert photos directly in your browser with zero quality loss.

Developer Tools

Handy JSON formatters, validators, Base64 converters, Unix timestamps, and cryptographic UUIDs.

Code Tools

Format HTML, minify CSS, beautify SQL queries, and test Regular Expressions instantly.

Text Tools

Fast online text utilities to count words, check characters, convert casing, clean text, and remove duplicates.

Unit Converters

Accurate physical converters for length, weight, temperature, area, and volume units.

Date & Time

Chronological tools for countdown timers, time zone conversions, date differences, and timestamps.

SEO Tools

Search engine optimization generators for slugs, meta tags, robots.txt, and XML sitemaps.

QR Tools

Generate custom styled QR codes and scan QR codes directly from images or live camera streams.

Finance & Business

Free online financial calculators for loans, VAT, salary, investments, and profit margins tailored for US, UK, EU, AUS, NZ, and Canada.