Ubuntu vs Kubuntu: how they differ
Ubuntu and Kubuntu are often considered side by side. This page compares what each one is built on, how it looks, how software is installed, how updates arrive and what hardware it needs.
Key differences
- Foundation: Ubuntu is built on Debian, while Kubuntu is built on Ubuntu.
- Desktop: Ubuntu uses GNOME; Kubuntu uses KDE Plasma.
- Software tools: Ubuntu uses apt and Snap; Kubuntu uses apt, so the commands you learn for one do not carry over.
- Releases: both follow long-term releases that stay supported for years.
- Memory: about 4 GB for Ubuntu against about 4 GB for Kubuntu is a comfortable minimum for a desktop session.
Choose Ubuntu if
You are among the people who want the most widely supported desktop, with a new release every six months and a long-term release every two years.
Choose Kubuntu if
You are among the people who want Ubuntu's base with KDE Plasma and plenty of customisation.
Quick answers
- Which is easier for a beginner? Both suit beginners, so choose on look and feel.
- Which suits older hardware? They ask for a similar amount of memory.
- Can I try both? Yes. Start each from a live USB drive without installing, or put both on one drive with Ventoy.
Browse the Ubuntu USB drive or the Kubuntu USB drive. Learn more: what is Ubuntu and what is Kubuntu.
Software commands compared
- Ubuntu:
sudo apt install name - Kubuntu:
sudo apt install name
Frequently asked questions
Which is better, Ubuntu or Kubuntu?
Neither is better for everyone. Choose by what you need: Ubuntu suits people who want the most widely supported desktop, with a new release every six months and a long-term release every two years, while Kubuntu suits people who want Ubuntu's base with KDE Plasma and plenty of customisation.
Can I install both Ubuntu and Kubuntu?
Yes. Install each one on its own partition, or try both from a live USB drive first. See dual booting for the idea, which also works between two Linux systems.
Which gets updates faster, Ubuntu or Kubuntu?
Ubuntu uses long-term releases that stay supported for years; Kubuntu uses long-term releases that stay supported for years.