How much disk space does a Kaspa node need?

A freshly synced Kaspa node starts at about 4 GB of disk space, but can grow to 20 GB or even 45 GB in rare cases depending on the DAG structure. After the initial sync, the node adds roughly 1 GB of data per day as new blocks are recorded, so you will need a drive with room to grow. The good news is that you can resync the node from scratch at any time to reset disk usage back to around 4 GB, giving you a practical escape valve if storage gets tight.