Most hard drive manufactures supply software, for free, to do this. If you post what manufacturer you are looking at, this could be confirmed or refuted.
Or you can buy software to do this and more. Acronis is excellent.
You must consider also, IF your bios could take such a large size drive. With having two very small hard drives, it would be worth checking what your motherboard bios could take.
Even on this, some manufacturers have software to fool the bios into accepting larger sizes.
Post the make and model of the motherboard, if you can.