Free Online Calculators, Converters & Web Tools
Popular tools
Convert HEIC to JPG Online
Convert HEIC to JPG directly in your browser. Free online HEIC to JPG converter with batc…
Percentage Calculator
Free percentage calculator: find X% of any number, what percent X is of Y, and percent in…
Loan & EMI Calculator
Free loan calculator: EMI, mortgage or personal loan. Monthly payment, total interest, ex…
Salary Calculator — Gross & Net
Free salary calculator: convert gross to net or net to gross with your tax and employee s…
Time Calculator
Add or subtract hours, minutes and seconds, or count years, months and days between two d…
Calorie Calculator — BMR and TDEE
Estimate adult daily calories: BMR with Mifflin-St Jeor, then TDEE from age, height, weig…
Online Temperature Converter
Instantly convert temperature units: Celsius to Fahrenheit, Kelvin, Rankine, and more. In…
Word Counter
Free word counter with live character count, sentences, paragraphs, reading and speaking…
Discount Calculator
Find the final price after any discount percentage instantly: see the sale price, the amo…
GPA Calculator
Free GPA calculator: enter letter grades and credit hours to get your high school or coll…
Crop & Resize Image Online
Quickly crop photos for social media (Instagram, TikTok, YouTube). Free online image crop…
Tip Calculator
Calculate the tip and total bill instantly, split it between any number of people, and ch…
Animal Age Calculator
🐶 How old is your pet in human years? The 1 to 7 rule is a myth! Use our precise calculat…
Online Pomodoro Focus Timer
Boost productivity with our customizable Pomodoro timer. Set work/break intervals (25/5),…
Length Converter
Free length converter: convert inches, feet, yards and miles to centimeters, meters and k…
Area Converter
Convert m² to ft², hectares to acres and back. Type a number, pick a unit, read the same…
MP3 Cutter & Ringtone Maker
✂️ Cut MP3 songs and make ringtones in seconds. Free online audio trimmer. 100% Private (…
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Your Toolbox for Everyday Tasks
QwHub is a free collection of online calculators, unit converters and web utilities. Calculate age, BMI, VAT, a loan EMI, net salary, time or calories, convert HEIC photos to JPG, work out a percentage or a discount, convert temperature and length, count words or crop an image — all in your browser, with no sign-up.
- 100% Free & No Registration
- Works on Mobile & Desktop
- Privacy Focused (Client-side processing)