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Boxing Reach Calculator

Compare reach, ape index, and striking distance between fighters

Reach Advantage

2.0"

Favors

Fighter B

Jab Gap

2.0"

Ape Index: 1.029 (+2.0")
Ape Index: 1.028 (+2.0")

Reach Advantage

2.0"

Favors Fighter B

Fighter A Ape Index

1.029

Fighter B Ape Index

1.028

A Striking Dist

36.0"

B Striking Dist

37.0"

Jab Range Gap

2.0" (5.1 cm)

What You'll Need

Everlast Pro Style Training Boxing Gloves 12oz

$25-$404.5
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Venum Challenger 2.0 MMA Gloves

$30-$454.5
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Sanabul Essential Curved Boxing MMA Punching Mitts

$25-$354.7
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Everlast Pro Style Training Boxing Gloves 12oz

$25-$404.5
View on Amazon

Venum Challenger 2.0 MMA Gloves

$30-$454.5
View on Amazon

Sanabul Essential Curved Boxing MMA Punching Mitts

$25-$354.7
View on Amazon

As an Amazon Associate, we earn from qualifying purchases.

Frequently Asked Questions

Q

What is ape index in boxing and why does it matter?

Ape index is the ratio of wingspan to height. An ape index above 1.0 means your wingspan exceeds your height, giving a reach advantage in boxing. Fighters like Jon Jones (1.038) and Conor McGregor (1.029) leverage their positive ape index to land strikes from outside opponents' range.

  • Ape index = wingspan / height (ratio form)
  • Ape index = wingspan - height (differential in inches)
  • Average person: 1.000 (wingspan equals height)
  • Jon Jones: 84.5" reach at 76" height = 1.112 ape index (+8.5")
  • Conor McGregor: 74" reach at 69" height = 1.029 ape index (+3")
FighterHeightReachApe IndexDifferential
Jon Jones6'4" (76")84.5"1.112+8.5"
Israel Adesanya6'4" (76")80"1.053+4"
Conor McGregor5'9" (69")74"1.072+5"
Average Male5'9" (69")69"1.0000"
Q

How does reach advantage affect boxing strategy?

A reach advantage of 2+ inches allows a fighter to land jabs and straight punches from outside the opponent's range. The longer-reach fighter can use a stiff jab to control distance, while the shorter-reach fighter must close distance with head movement and body shots to negate the advantage.

  • 1-2" advantage: marginal, skill negates it easily
  • 3-4" advantage: significant jab range benefit
  • 5-6" advantage: dominant range control (rare in same weight class)
  • 7"+ advantage: extreme (Jon Jones vs most opponents)
  • Shorter fighter counters: inside fighting, body work, head movement
Reach AdvantageImpactStrategy for Longer FighterCounter Strategy
1-2"MinorUse jab, maintain distancePressure, close distance
3-4"SignificantControl range, pick shotsHead movement, angles
5-6"MajorDominate at rangeSmother, clinch, body shots
7"+ExtremeKeep opponent at end of punchesMust get inside, uppercuts
Q

How do you calculate optimal striking distance?

Optimal striking distance is approximately half of a fighter's reach (wingspan). For a fighter with 72" reach, the optimal striking distance is about 36" from the opponent. The jab range gap between two fighters equals the difference in their reach, which is the zone where only the longer-reach fighter can land.

  • Striking distance ≈ reach / 2 (half wingspan)
  • Jab range gap = longer reach - shorter reach
  • A 4" jab range gap means 4 inches of "safe zone" for the longer fighter
  • Cross/hook range is shorter than jab range by 4-6 inches
  • Uppercut range is the shortest: requires close proximity
Q

Does reach matter more than height in boxing?

Reach matters more than height because it directly determines punching range. A 5'10" fighter with 76" reach has more range than a 6'1" fighter with 74" reach. Height helps with leverage on uppercuts and downward punches, but reach controls the jab game and distance management, which are fundamental to boxing.

  • Reach determines punching range; height affects angle of attack
  • Tall fighters with short reach (negative ape index) struggle at range
  • Short fighters with long reach (positive ape index) have deceptive range
  • Mike Tyson (5'10", 71" reach) overcame reach disadvantages with speed
  • Tommy Hearns (6'1", 78" reach) used extreme reach to dominate
AttributeBoxing ImpactAdvantage TypeCan Be Negated By
ReachControls jab distanceRange controlSpeed, head movement
HeightAngle of punchesLeverage on uppercutsInside fighting
Ape IndexRange beyond heightDeceptive reachClosing distance
Q

What is a good ape index for boxing?

An ape index of 1.03+ is considered advantageous for boxing, meaning your wingspan exceeds your height by about 3%. Most elite boxers have positive ape indexes. The average person has an ape index of 1.00. Anything above 1.05 is exceptional and provides significant range advantages at any weight class.

  • Below 1.00: negative ape index, reach disadvantage for height
  • 1.00: average, wingspan equals height
  • 1.01-1.02: slightly positive, minor advantage
  • 1.03-1.05: good ape index for combat sports
  • 1.05+: exceptional, significant reach advantage
  • Michael Phelps holds one of the highest at 1.052 (swimmer)

Example Calculations

1Heavyweight Fight: 2-Inch Reach Advantage

Inputs

Fighter A70" height, 72" reach
Fighter B72" height, 74" reach

Result

Reach Advantage2.0" (Fighter B)
Fighter A Ape Index1.029 (+2.0")
Fighter B Ape Index1.028 (+2.0")
Jab Range Gap2.0"

Fighter B has 74" reach vs Fighter A's 72" = 2" advantage. Both have similar ape indexes: A = 72/70 = 1.029, B = 74/72 = 1.028. Striking distances: A = 36.0", B = 37.0". The 2" jab gap is significant but manageable with good footwork.

2Jon Jones vs Average Middleweight

Inputs

Fighter A (Jones)76" height, 84.5" reach
Fighter B72" height, 73" reach

Result

Reach Advantage11.5" (Fighter A)
Fighter A Ape Index1.112 (+8.5")
Fighter B Ape Index1.014 (+1.0")
Jab Range Gap11.5"

Jones has an extreme 84.5" reach at 76" height = ape index of 84.5/76 = 1.112. Opponent: 73/72 = 1.014. Reach advantage = 84.5 - 73 = 11.5". Striking distances: Jones = 42.25", opponent = 36.5". The 11.5" gap is enormous.

3Equal Reach, Different Proportions

Inputs

Fighter A68" height, 72" reach
Fighter B72" height, 72" reach

Result

Reach Advantage0.0" (Even)
Fighter A Ape Index1.059 (+4.0")
Fighter B Ape Index1.000 (0.0")
Height Difference4.0" (Fighter B)

Same 72" reach but different heights. Fighter A: 72/68 = 1.059 ape index (excellent). Fighter B: 72/72 = 1.000 (average). Despite being 4" shorter, Fighter A has equal range due to proportionally longer arms. No jab gap, but Fighter B has height advantage for downward punches.

Formulas Used

Ape Index (Ratio)

Ape Index = Wingspan / Height

Calculates the ratio of wingspan to height. A value above 1.0 indicates wingspan exceeds height.

Where:

Ape Index= Ratio of wingspan to height (1.0 = equal, >1.0 = long arms)
Wingspan= Full arm span from fingertip to fingertip (inches)
Height= Standing height (inches)

Reach Advantage

Advantage = Reach_A - Reach_B

The difference in reach between two fighters. Positive means Fighter A has the reach advantage.

Where:

Advantage= Reach difference in inches (positive = Fighter A advantage)
Reach_A= Fighter A wingspan in inches
Reach_B= Fighter B wingspan in inches

Striking Distance

Striking Distance ≈ Reach / 2

Approximate optimal punching distance from the opponent. The jab range gap between fighters equals the reach difference.

Where:

Striking Distance= Approximate distance for landing a jab (inches)
Reach= Fighter's full wingspan (inches)

Understanding Reach and Ape Index in Combat Sports

Reach, measured as full wingspan from fingertip to fingertip, is one of the most important physical attributes in boxing and MMA. Unlike height, which can be partially negated by stance and movement, reach directly determines the distance at which a fighter can land clean punches. A 3-inch reach advantage translates to a measurable safe zone where only the longer fighter can land.

The ape index quantifies reach advantage relative to body size. Expressed as a ratio (wingspan/height) or differential (wingspan minus height in inches), it reveals whether a fighter's arms are proportionally long for their frame. Jon Jones, widely considered the greatest MMA fighter, has an extraordinary 84.5-inch reach at 6'4", giving him an ape index well above average.

This calculator compares two fighters' reach, height, ape index, and estimated optimal striking distance. Enter measurements for both fighters to see the reach advantage, jab range gap, and how each fighter's proportions compare to elite combat sports athletes.

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Last Updated: Mar 25, 2026

This calculator is provided for informational and educational purposes only. Results are estimates and should not be considered professional financial, medical, legal, or other advice. Always consult a qualified professional before making important decisions. UseCalcPro is not responsible for any actions taken based on calculator results.

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