The qemu-img image format conversion tool supports mutual conversion of images in vhd, vmdk, qcow2, raw, vhdx, qcow, vdi or qed community formats.
View the file qemu-img info -U (file name) vmtools.iso
format conversion
Execute the following command to convert the image file format.
Convert vmdk format to qcow2 format
$ qemu-img convert -p -f vmdk -O qcow2 centos8.vmdk centos8.qcow2
Convert vma(raw) to qcow2
$ qemu-img convert -p -f raw -O qcow2 test.vma test.qcow2
Convert the disk in the default raw format to qcow2 format with simple compression
qemu-img convert -c -f raw -O qcow2 test1.raw test1.qcow2
Export the disk in the default qcow2 format to a simple compressed qcow2 format
qemu-img convert -c -O qcow2 test1.qcow2 new.test1.qcow2