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Calcimator

Pole Vault Pole Selection Calculator

Pole weight rating from vaulter weight and grip height.

About this calculator

Picking a vaulting pole means balancing two numbers that pull in opposite directions: a pole's weight rating (the maximum vaulter weight it's built to safely bend for) and its length, which sets how much energy it can store and how high you can grip it. This calculator recommends both from your body weight, height, approach speed, and stated experience level. The rating recommendation adds a margin above your body weight — 5 lbs for beginners, 15 for intermediate, 25 for advanced — reflecting the real convention that beginners vault poles rated close to their own weight for safety and predictability, while advanced vaulters deliberately "hold up" on stiffer, higher-rated poles that store and return more energy, because their speed and technique let them bend a stiffer pole enough to use it. Recommended pole length comes from your desired grip height divided by a grip-percentage assumption that also scales with experience (78% for beginners up to 88% for advanced, since better vaulters can grip higher up a given pole and still control it), then rounds to the nearest half-foot to match how poles are actually sold.

Separately, the calculator runs an energy audit: kinetic energy from your approach speed (with an assumed 8% speed loss at the plant) is compared against the potential energy needed to raise your center of mass to the target bar height, discounted by an experience-based transfer efficiency (75-92%) that represents how much of your running speed actually converts into height through the pole rather than being lost to imperfect technique. If available energy falls short of required energy, the bar likely isn't clearable at that speed and technique level. Every efficiency, grip percentage, and pole-bend figure here is a modeling assumption, not a substitute for a coach fitting you to an actual pole.

Inputs

lb
ft
m/s
ft
ft

Results

Recommended Pole Rating

170 lbs

≈ 8 car tires

Pole Rating (metric)77 kg
Recommended Pole Length17 ft
Pole Length (metric)5.18 m
Grip Height %78%
Max Theoretical Height3.32 m
Energy Ratio0.75
Kinetic Energy at Takeoff2,293 J
Required Potential Energy2,296 J
Energy Efficiency75%
Expected Pole Bend0.92 m
Recommended Flex Number14
Can ClearNo
How to Use This Calculator
  1. Enter Vaulter weight, Vaulter height, and Approach speed.
  2. Set Grip height, Target bar height, and Experience level.
  3. Review the Recommended Pole Rating (lbs) result.
  4. Use Pole Rating (metric) (kg) and Recommended Pole Length (ft) to inform your decision.

How the result changes with Vaulter weight

Vaulter weightRecommended Pole Rating
4095 lbs
56130 lbs
113255 lbs
120270 lbs

What each input means

Vaulter weight
Body weight in kg. Pole ratings are based on max vaulter weight.
Vaulter height
Standing height for COM calculation.
Approach speed
Speed at the end of approach run (elite: 9-10 m/s).
Grip height
Height of top hand grip on the pole from bottom.
Target bar height
Bar height you want to clear.
Experience level
1 = Beginner, 2 = Intermediate, 3 = Advanced/Elite.

What each result means

Recommended Pole Rating
Recommended pole weight rating in pounds.
Pole Rating (metric)
Pole weight rating converted to kilograms.
Recommended Pole Length
Recommended pole length in feet.
Pole Length (metric)
Recommended pole length in metres.
Grip Height %
Grip position as percentage of pole length.
Max Theoretical Height
Maximum bar height achievable with current speed and efficiency.
Energy Ratio
Available energy / required energy (>1.0 means bar is achievable).
Kinetic Energy at Takeoff
Kinetic energy from approach run available for vault.
Required Potential Energy
Potential energy needed to raise COM to bar height.
Energy Efficiency
Estimated KE to PE conversion efficiency.
Expected Pole Bend
Estimated maximum pole bend depth.
Recommended Flex Number
Suggested pole flex number (lower = stiffer).

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Vaulter weight = 75, Vaulter height = 1.78, Approach speed = 8.5, Grip height = 4 = 6 input(s) provided
  2. Calculate Recommended Pole Rating
    Recommended Pole Rating = round((weightLbs + ratingOffset) / 5) * 5
    170 = 170
  3. Calculate Pole Rating
    Pole Rating = round(recommendedRatingLbs / 2.205)
    77 = 77
  4. Calculate Recommended Pole Length
    Recommended Pole Length = round(recommendedPoleLengthFt * 2) / 2
    17 = 17

Engine last updated . Checked against 3 independently-derived tests — how we verify calculators. Built by Paul Gunder, a software engineer, not a licensed financial, medical, or legal professional.

Frequently Asked Questions

Why does the calculator recommend a pole rated well above my body weight if I'm advanced?

The rating offset grows with experience level — 5 lbs above body weight for beginners, 15 for intermediate, 25 for advanced — because a stiffer, higher-rated pole stores and returns more energy, but it takes speed and technique to bend it enough to access that energy. Beginners vault poles rated close to their own weight because a pole that's too stiff for their speed won't bend enough to be useful and becomes harder to control.

How is recommended pole length related to my grip height?

The calculator divides your entered grip height by a grip-percentage assumption that scales with experience — 78% for beginners up to 88% for advanced — because more experienced vaulters can grip higher up a given pole length and still control it through the vault. It then rounds the result to the nearest half-foot, since poles are manufactured in those increments.

What does the energy ratio actually tell me?

It divides your available potential energy (kinetic energy from your approach speed at 92% takeoff efficiency, further reduced by an experience-based transfer efficiency of 75-92%) by the potential energy required to raise your center of mass to the target bar height plus 10 cm of clearance. A ratio at or above 1.0 means the model predicts you have enough energy to clear that bar at that speed and technique level; below 1.0 means the bar likely isn't reachable without more speed or better technique.

Why does the recommended flex number go down as my weight or speed increases?

A lower flex number means a stiffer pole, and the formula (20 minus adjustments for weight above 50 kg and speed above 6 m/s) reduces the number as either input rises — heavier or faster vaulters need a stiffer pole to avoid overbending it and to store energy efficiently at their speed, which is why the flex recommendation trends toward stiffer poles as your weight and approach speed increase.

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