How much space do you have?
30cm - With 2 burner zones, these hobs are ideal for smaller kitchens or easy to combine with another hob.
60cm – The most common size for a reason. With 4 burner zones it should suit most households and provide you plenty of cooking options.
75, 80 or 90cm - Bigger hobs offer up to 6 burner zones, useful if you regularly put on a bit of a feast.
Your work surface should always be between 25 and 30mm deep to fit your hob.