Digital & Dev

PPI/DPI, Aspect Ratio, Subnet, Base Converter, Color Code

PPI/DPI Calculator

Calculate screen PPI from resolution and display size, and check print DPI for optimal quality. Compare pixel density across devices with this free PPI and DPI calculator.

Aspect Ratio Calculator

Calculate aspect ratios and convert resolutions. Find the matching width or height for 16:9, 4:3, and custom ratios. Free online aspect ratio calculator.

Subnet Calculator

Enter an IP address and subnet mask or CIDR prefix to instantly find the network and broadcast address, usable host range and count, and IP class. Free subnet calculator.

Number Base Converter

Convert numbers between binary, octal, decimal, and hexadecimal instantly, with support for any custom base from 2 to 36. A free number base converter for programming.

Color Code Converter

Convert color codes between HEX, RGB, HSL, HSV and CMYK instantly. Enter any format to get all the others, with a live color preview and one-click copy for web design.