There are a lot of tutorials out there but this method worked the best for me to migrate Virtual Machines from VirtualBox to VMware ESXi.
Create diskless Virtual Machine in VMware Clone the .vdi Hard Drive from VirtualBox in vmdk format Move the new .vmdk image into VMware datastore using scp or wget Convert using VMware vmkfstools (this option is missing from tutorials!) Attach the Hard Drive and start your Virtual Machine in VMware I’ve done this migrating machines from VirtualBox 4.3 to VMware 6.5, it should also work with other VirtualBox or VMware versions.
Create diskless VM in VMware