Everyday Tools That Just Work
Free calculators for tips, BMI, percentages, unit conversions, and more — no signup, runs in your browser.
Calculators
Tip Calculator
Calculate restaurant tips and split bills instantly.
Open →Bill Splitter
Split a bill evenly or by custom amounts among friends.
Open →Percentage Calculator
Find percentages, percent of a number, and percent change.
Open →Discount Calculator
Calculate sale price after a percentage discount.
Open →Sales Tax Calculator
Calculate sales tax and total price for any US tax rate.
Open →Permutation & Combination Calculator
Calculate P(n,r) permutations and C(n,r) combinations.
Open →Roman Numeral Converter
Convert between Arabic numbers and Roman numerals (1–3999).
Open →Health & Fitness
BMI Calculator
Calculate Body Mass Index with metric or imperial units.
Open →Ideal Weight Calculator
Estimate healthy weight range based on your height.
Open →Calorie Calculator
Estimate daily calorie needs based on age, weight, and activity.
Open →Water Intake Calculator
Find how much water you should drink daily based on weight.
Open →Pregnancy Due Date Calculator
Estimate your due date from the first day of your last period.
Open →Body Fat Calculator
Estimate body fat % using the US Navy circumference method.
Open →Date & Age
Unit Converters
Length Converter
Convert cm, inches, feet, meters, miles, and more.
Open →Weight Converter
Convert kg, pounds, ounces, and stones.
Open →Temperature Converter
Convert Celsius, Fahrenheit, and Kelvin.
Open →Area Converter
Convert square meters, acres, hectares, square feet, and more.
Open →Volume Converter
Convert liters, gallons, cups, milliliters, and cubic meters.
Open →Speed Converter
Convert mph, km/h, m/s, knots, and feet per second.
Open →Random & Decision
Random Number Generator
Generate random numbers within a custom range.
Open →Dice Roller
Roll virtual dice — d4, d6, d20, or any custom sides.
Open →Decision Wheel
Spin a wheel to pick randomly from your options.
Open →Name Picker
Randomly pick a name from your list — perfect for giveaways.
Open →Random Group Generator
Randomly split a list of names into teams or groups.
Open →Social Text
Kitchen & Cooking
Image Tools
Image Compressor
Compress JPG images in your browser — reduce file size instantly.
Open →Image Resizer
Resize images to exact pixel dimensions with aspect ratio lock.
Open →JPG to PNG Converter
Convert JPEG images to PNG format locally.
Open →QR Code Generator
Generate QR codes from text or URLs — free and instant.
Open →Color Converter
Convert between HEX, RGB, and HSL with live color preview.
Open →WebP Converter
Convert images to WebP, PNG, or JPEG in your browser.
Open →Barcode Generator
Generate CODE128, EAN-13, and UPC barcodes from text.
Open →PDF Tools
Finance
Currency Converter
Convert between world currencies using live exchange rates.
Open →Mortgage Calculator
Estimate monthly mortgage payments from price, down payment, and rate.
Open →Compound Interest Calculator
Project investment growth with compound interest and monthly contributions.
Open →Budget Calculator
Sum income and expenses, balance, and savings rate.
Open →