You’ll need to jump roughly 24 inches to touch the rim and 30 inches to dunk a full sized basketball (assuming average arm length). While the height difference between a 5 foot 9 person and a 6 foot person is only 3 inches, it’s actually a lot easier around this height for two reasons.
Anyway, considering that basketball hoops are generally mounted 10 feet high from the ground, your vertical jump needs to cover the difference between your standing reach and 10 feet, plus around 6 inches to comfortably reach over the hoop to dunk. So the taller you are, the less you will have to jump.
How tall do you have to be to dunk? The truth is, there is no one required height. While having some extra length helps, as we’ll get into below, you don’t need to be seven feet to get to the rim. There are many people out there who are less than six feet tall who can dunk with relative ease.
Based on statistics and factual data, players with height ranging from 5’7” to 6’4” can dunk with and without exercise. That said, players with improved height do have an advantage on the court, but that should not discourage you. You should know that players with small height have improved dribbling skills.
Easy 6’5 and above. At this height, you will still need to be physically fit to dunk a basketball unless a person is closer to the 7-foot mark…. With barely any vertical training, a person who is 6’5 or taller should be dunking fairly easily. Being this tall lets a person have a huge advantage or an average person.
Step 1: Enter your standing reach. If you don't know your standing reach you can also use your height and the Dunk Calculator will estimate your standing reach using the standing reach calculator . Step 2: Put in how high you need to reach above the rim to be able to dunk. Six inches is the default value. Step 3:
Height: 6′ – 6′ 4″ Difficulty: 6/10. It is at this height that you start to see many genetically gifted people be a able to dunk without any specific structured jump training. Think Vince Carter for example. It is important to not compare yourself with "genetic freaks" like Vince. In a way they got it easy.
Professional basketball requirements provide a general view that guides us in deducing the minimum height for dunking in non-competitive scenarios. We know that the standard basketball rim sits at 10 feet above the ground. You don’t need to be 6′ tall to dunk as the shortest professional male dunker Spud Webb is only 5 feet and 7 inches tall.