Originally found at http://www.ubuntugeek.com/howto-convert-vmware-image-to-virtualbox-image.html

… to use qemu-img tool to this.QEMU disk image utility

First Install qemu qemu-img is included with qemu package using the following command

sudo apt-get install qemu

Convert a VMWare Image to VirtualBox Image

Convert VMWare image called debian.vmdk to /tmp/debian.bin

qemu-img convert debian.vmdk /tmp/debian.bin

Now use VBoxManage to get back image in native format:

VBoxManage convertdd /tmp/debian.bin debian.vdi

Solution 2

VirtualBox can run VMs created by VMware Workstation or Server for this you need to import vmdk files using the following procedure

• Start Virtual Box

• Goto File > Virtual Disk Manager

• Click Add. Locate and select the copied .vmdk file. Click OK.

• Create a New VM as usual using the added vmdk file

• Boot the VM

If you have any other solutions let us share with us.