A question of numbers
Here are the correct centimetres that guarantee perfect movement at all times.
To avoid having a brand new kitchen where there just isn't enough space, you need to pay plenty of attention during the design planning phase.
If the kitchen only has one sink, it should be placed between the refrigerator and the hob. The worktop should be inserted beside the sink and should be at least 60 cm deep and 90 cm wide. The hob should envisage a clearance of at least 30 cm on either side. It is generally useful to keep an unoccupied space at least 75 cm deep and 120 cm wide in front of the sink, dishwasher, hob and refrigerator. Similarly, the sink and hob should be placed at least 40 cm away from any corners, to avoid knocking against elbows and pans.
For improved movements, wall units should be positioned approximately 120/140 cm above the ground.
Their depth should always be less than that of the base units, to avoid knocking into them with your head.
The average depth is around 35 cm, considering a standard base unit depth of around 60 cm.