Everyday Calculators
Handy tools for daily life: exact age, days between dates, hours worked, GPA and grades, tip splitting, fuel economy, concrete volume, IP subnets, strong passwords and a 3D dice roller.
18 free calculators
Tip Calculator
Quickly calculate restaurant tips and split the total bill evenly among your group.
Pet Age Calculator
Convert your dog or cat's literal age into equivalent human years based on size and breed.
Age Calculator
Calculate your exact age in years, months, and days from your date of birth.
Date Calculator
Find the difference between two dates or add/subtract days, weeks, months, and years from a date.
Time Calculator
Add or subtract time durations and convert between time zones worldwide.
Hours Calculator
Calculate hours worked between start and end times, with break deduction support.
GPA Calculator
Calculate your semester and cumulative GPA from course grades and credit hours.
Grade Calculator
Calculate your weighted final grade from individual assignment scores and their weights.
Concrete Calculator
Calculate the volume of concrete needed for slabs, footings, columns, and steps.
IP Subnet Calculator
Calculate network and broadcast addresses, usable host ranges, and subnet masks from CIDR notation.
Password Generator
Generate strong, random passwords with custom length and character set options plus a strength meter.
Unit Conversion Calculator
Convert between units of length, weight, temperature, volume, speed, and more instantly.
QR Code Generator – UPI, Wi-Fi, WhatsApp & Logo QR
Create beautiful QR codes for links, UPI payments, Wi-Fi, contacts, WhatsApp and more — add your logo and a "Scan to pay" frame, verified to scan, with print-ready PNG, SVG and A4 downloads.
Image Compressor & Resizer
Compress photos to an exact size in KB (20KB, 50KB, 100KB…), resize to passport, visa or signature pixels, crop, and convert HEIC to JPG — all in your browser, nothing uploaded.
Color Mixer – Paint Mixing & Recipe Calculator
Mix paints like real pigments, or pick any target colour and get the exact recipe — which paints to mix and in what parts — from CMYK, primaries or your own tubes.
Spin the Wheel – Random Name Picker
Add names, emails or numbers and spin a beautiful wheel to pick a random winner — draw multiple winners, remove each winner and spin again.
Dice Roller
Roll up to 6 virtual dice with elegant 3D animations and instant results. Perfect for games.
Gas Mileage Calculator
Calculate your vehicle's fuel efficiency in MPG or L/100km and estimate trip costs.