Vertical Calculator

Standing Reach (inches):

Jump Reach (inches):

Target or Rim Height (inches):

Knowing your vertical jump is useful, but knowing what that jump lets you reach is what changes a game. The Vertical Calculator starts with your standing reach and jump reach, finds your vertical jump in inches and centimetres, and then compares your jump reach with a target or rim height to show your clearance above the target.

That final number answers the question every player actually asks. A positive clearance means your hand gets above the target, a clearance of zero means you graze it exactly, and a negative figure tells you honestly how many inches you still need. A regulation basketball rim sits at 120 inches, which is the target used in the examples on this page.

The guide below covers careful measuring, two complete worked examples and the training conclusions you can draw from each output. Bring honest reach measurements and the calculator will turn them into a clear picture of where your jump stands today.

Vertical Jump Versus Jump Reach

Your vertical jump is the distance you raise yourself, found by subtracting standing reach from jump reach. Your jump reach itself is the absolute height your hand attains, and targets such as rims, blocks and spikes care about the absolute height rather than the gap.

Holding both ideas at once prevents two common confusions. A tall player can own the higher jump reach with the smaller vertical, while a shorter player can own the bigger vertical and still touch lower. The calculator reports the vertical for athletic comparison and the clearance for practical questions, so neither fact hides the other.

Why a Target Height Belongs in the Calculation

Most jumping questions are really target questions. Can I touch the rim, how far above the net can I strike the ball, or how much more do I need before a dunk becomes realistic. Entering a target or rim height lets the calculator answer directly with a clearance figure instead of leaving you to subtract in your head.

The target is yours to set. Use 120 inches for a regulation rim, a lower figure for a youth rim or training target, or the height of any bar, branch or mark you train against. The clearance simply reports jump reach minus target height, positive when you are above it and negative while you are chasing it.

Inches and Centimetres Side by Side

The vertical jump is reported in both inches and centimetres, converted at exactly 2.54 centimetres per inch. A 36 inch vertical is therefore 91.44 centimetres, a figure that reads naturally to athletes and coaches who work in metric units.

Keeping both units visible avoids the quiet errors that creep in when people convert from memory. It also makes mixed-unit equipment harmless, because a target measured in centimetres can be compared with a jump reported in inches once everything passes through the same honest conversion.

How to Use the Vertical Calculator

Using the tool takes less than a minute, and the same calm routine works for every calculation on this page. Follow the steps in order, read the three results together, and keep the worked examples nearby the first time you try it.

Measure your standing reach in inches, flat-footed with one arm stretched fully upward against a wall, and enter it in the first box.
Measure your jump reach in inches from your best jump touch, and enter it in the second box. It must be greater than your standing reach.
Enter the target or rim height in inches in the third box, such as 120 for a regulation basketball rim.
Press Calculate to read your vertical jump in inches, the same jump in centimetres, and your clearance above the target.
Press Reset to clear the page and test a different target or a different athlete.

A negative clearance is information, not failure. It tells you the exact number of inches between your best touch and the target, which converts a vague ambition into a measurable training gap you can chip away at month by month.

For the most trustworthy figures, measure both reaches in the same session, in the same shoes, at the same wall. Comparing a jump reach from a fresh morning with a standing reach guessed from memory is how small errors sneak into an otherwise simple subtraction.

Worked Example 1: Clearing a Regulation Rim

A player records a standing reach of 88 inches, a jump reach of 124 inches and tests against a target of 120 inches.

Step 1: Enter the standing reach, which is 88 inches.

Step 2: Enter the jump reach, which is 124 inches.

Step 3: Enter the target height, which is 120 inches.

Step 4: Subtract the reaches. The vertical jump is 124 minus 88, which equals 36.00 inches.

Step 5: Convert the jump. That is 36 × 2.54, which equals 91.44 cm.

Step 6: Find the clearance. That is 124 minus 120, which equals 4.00 inches above the rim.

Four inches of clearance is the difference between touching a rim and controlling the ball above it, which is why dunkers chase clearance rather than a bare touch.

Worked Example 2: Measuring the Gap to the Rim

A developing player records a standing reach of 82 inches, a jump reach of 110 inches and tests against the same target of 120 inches.

Step 1: Enter the standing reach, which is 82 inches.

Step 2: Enter the jump reach, which is 110 inches.

Step 3: Enter the target height, which is 120 inches.

Step 4: Subtract the reaches. The vertical jump is 110 minus 82, which equals 28.00 inches.

Step 5: Convert the jump. That is 28 × 2.54, which equals 71.12 cm.

Step 6: Find the clearance. That is 110 minus 120, which equals -10.00 inches.

The negative clearance states the training task precisely. This athlete needs ten more inches of combined reach and jump before the rim comes into touching distance.

From Touching to Playing Above the Target

Touching a target and using it are different achievements. A fingertip graze needs zero clearance, holding a ball above a rim asks for several inches, and a confident two-hand finish asks for more again. Reading the clearance output as a ladder, touch first, then control, then power, keeps ambitions ordered and realistic.

The same ladder applies in other sports. A volleyball blocker wants clearance above the net tape, a football receiver wants it above a defender reach, and a high jumper thinks in bar heights. In each case the calculator pattern, reach plus jump compared with a target, describes the contest exactly.

Closing a Negative Clearance

A negative clearance closes from two directions. The vertical jump can grow through strength and technique training, and the effective reach can grow slightly through shoulder mobility and better extension at the top of the jump. Adding a running approach, where the sport allows it, often contributes inches that a standing test never shows.

Set intermediate targets on the way. If the rim is ten inches away, a training mark six inches away is a genuine milestone, and entering it as the target turns the calculator into a progress report. Small confirmed gains are the fuel that carries a long training plan.

Practical Tips for Better Results

Small habits make a large difference to the quality of any calculation. The tips below gather the advice that experienced users of this kind of tool repeat most often, and each one is quick to apply.

1. Measure both reaches in one session. Same-day, same-shoes measurements keep the subtraction honest and stop small setup changes from inventing progress.
2. Use 120 inches for a regulation rim. Entering the true rim height makes the clearance output answer the exact question most basketball players bring to the tool.
3. Respect a negative clearance. Treat it as a precise training gap to close, measured in inches, rather than as a verdict on your potential.
4. Set stepping-stone targets. Enter a reachable training mark as the target while you develop, then raise it as your clearance turns positive.
5. Take the best of three jumps. One attempt rarely shows your ceiling, while the best clean touch of three attempts is a fair and repeatable standard.
6. Warm up and land safely. A short warm-up raises the jump, and soft two-foot landings protect knees and ankles across many test attempts.
7. Keep the approach consistent. Record whether you jumped from standing or with a run-up, because the approach can add several inches to the reach.
8. Retest every six to eight weeks. That interval is long enough for training to change the numbers and short enough to keep the target feeling close.

Frequently Asked Questions

1. What does the Vertical Calculator work out?

It works out your vertical jump from standing reach and jump reach, shows it in inches and centimetres, and compares your jump reach with a target height to give your clearance above or below that target.

In the first worked example, reaches of 88 and 124 inches produced a 36.00 inch vertical, 91.44 centimetres, and 4.00 inches of clearance over a 120 inch rim. That is the profile of a player who can play above the rim.

2. How is clearance calculated?

Clearance is simply jump reach minus target height. A positive result means your hand finishes above the target, zero means an exact graze, and a negative result shows how many inches short you finished.

The second example finished 10.00 inches below the same rim with a 28.00 inch vertical. A negative clearance like that is best read as a measured gap with a training plan attached, not as a final judgement.

3. What target height should I enter for basketball?

Enter 120 inches for a regulation rim, which stands ten feet above the floor. For youth rims or adjustable hoops, measure the rim you actually use and enter that height instead.

Clearance is always jump reach minus target, nothing more mysterious. Changing the target changes the answer even when your jump is identical, so always note which target a clearance figure belongs to.

4. What does a negative clearance mean for my training?

It gives you the exact size of the gap, which is valuable planning information. Ten inches short is a long project, three inches short is a near-term target, and both judgements start from that honest number.

The centimetre line is the same jump in the other unit system, converted at 2.54 centimetres per inch. Use whichever unit your coach, league or equipment speaks, and let the other serve as a check.

5. How much clearance do I need to dunk?

Touching the rim needs zero clearance, while controlling a ball above it usually asks for roughly six or more inches depending on hand size and style. Treat six positive inches as a practical first dunking milestone.

Reach and jump contribute equally to touching a target. An extra inch of either one moves clearance by exactly an inch, which is why tall players guard their reach advantage so carefully.

6. Why does my standing reach matter so much?

Standing reach sets the platform the jump starts from. Two athletes with the same vertical can finish many inches apart because one began from a longer reach, which is why targets reward reach plus jump together.

7. Can I use the calculator for volleyball?

Yes, by entering the net height or the striking height you care about as the target. Blockers and attackers both think in clearance above the tape, which is exactly what the third output reports.

8. What is a strong vertical jump result?

Around 24 inches is athletic for a recreational player, 28 to 30 inches is strong, and 36 inches, as in the first example, is exceptional outside elite programmes. Context such as age and training history always matters.

9. How do I measure standing reach without help?

Tape a long strip of paper to a wall, stand side-on with feet flat, stretch up and mark the highest touch on the paper. Measure from the floor to the mark with a tape measure afterwards.

The centimetre line is the same jump in the other unit system, converted at 2.54 centimetres per inch. Use whichever unit your coach, league or equipment speaks, and let the other serve as a check.

10. Should my jump be standing or running?

Use the style your question is about and write it beside the result. A dunk attempt usually allows an approach, while formal testing often standardises a standing or countermovement jump.

Reach and jump contribute equally to touching a target. An extra inch of either one moves clearance by exactly an inch, which is why tall players guard their reach advantage so carefully.

11. Why are inches and centimetres both shown?

Sport uses inches in some countries and centimetres in others, and showing both at the exact 2.54 conversion prevents translation errors. A 36 inch jump and a 91.44 centimetre jump are the same achievement.

12. How can I increase my clearance fastest?

Combine lower-body strength work with jump practice and approach technique, since the target rewards the total of reach and jump. Early gains often come from technique, later gains from patient strength building.

13. Does the calculator account for holding a ball?

No, it compares fingertip reach with the target. Holding a ball effectively shortens your reach a little, so add a small mental allowance when you translate clearance into dunking expectations.

14. What if my jump reach equals my standing reach?

That would mean no jump was recorded, and the tool asks for a jump reach above the standing reach. Remeasure the jump touch carefully, because a real jump always adds height.

The centimetre line is the same jump in the other unit system, converted at 2.54 centimetres per inch. Use whichever unit your coach, league or equipment speaks, and let the other serve as a check.

15. How often should I check my clearance?

Recheck every six to eight weeks alongside your vertical test. Watching a negative clearance shrink toward zero, and eventually turn positive, is one of the clearest signs that training is working.

Reach and jump contribute equally to touching a target. An extra inch of either one moves clearance by exactly an inch, which is why tall players guard their reach advantage so carefully.

CONCLUSION

The Vertical Calculator connects the two questions athletes actually ask, how high do I jump and what does that jump let me reach. Enter standing reach, jump reach and a target height, and it returns the vertical in inches and centimetres plus the clearance that decides touches, blocks and dunks.

Measure honestly, respect the gap when it is negative, and train it down inch by inch. When the clearance finally turns positive against a target that once looked distant, you will know the improvement is real because every part of it was measured.