If you are looking for free applications I can recommend two programs:
1. Sweet Home 3D allows you to plan a whole house (kitchen as well) and there's a lot of available elements, and you can define the size of the rooms.
2. ALNO Kitcher Planner has quite a lot of features as well. It's dedicated to kitchen planning, so it's the most accurate. You can change the colour of walls and floors, as well as see a done project from different POVs.