golf-club-length

Golf club length calculator that recommends custom club length adjustments from standard based on a golfer's height and wrist-to-floor measurement. Covers all 14 major club types from driver to putter.

For complete club length reference data, fitting guides, and interactive charts, visit Golf Club Length Chart — GolfLaunchLab.

Installation

Python

pip install golf-club-length

JavaScript / Node.js

npm install golf-club-length

Usage

Python

from golf_club_length import recommend_length, get_all_recommendations, get_standard_lengths

# Get standard lengths for all clubs
standards = get_standard_lengths()
print(standards['driver'])   # 45.5
print(standards['7-iron'])   # 37.0

# Recommend length for a single club (wrist-to-floor is the primary method)
result = recommend_length(72, wrist_to_floor_inches=35, club='driver')
print(result)
# {
#   'standard_length': 45.5,
#   'recommended_length': 45.5,
#   'adjustment': 0.0,
#   'fitting_note': 'Standard length recommended based on wrist-to-floor measurement.'
# }

# Tall golfer (6'4", wrist-to-floor 42")
result = recommend_length(76, wrist_to_floor_inches=42, club='7-iron')
print(result)
# {
#   'standard_length': 37.0,
#   'recommended_length': 38.0,
#   'adjustment': 1.0,
#   'fitting_note': '1" longer than standard recommended based on wrist-to-floor measurement. Confirm with a certified club fitter.'
# }

# Height-only fallback (no wrist-to-floor)
result = recommend_length(68, club='driver')
print(result['adjustment'])    # 0.0 (standard range)

# Get recommendations for every club at once
bag = get_all_recommendations(76, wrist_to_floor_inches=42)
for club, rec in bag.items():
    print(f"{club:10s}: {rec['recommended_length']:.2f}\" (adjustment: {rec['adjustment']:+.2f}\")")

Example output for a tall golfer (76", WTF 42"):

driver    : 46.50" (adjustment: +1.00")
3-wood    : 44.00" (adjustment: +1.00")
5-wood    : 43.00" (adjustment: +1.00")
4-hybrid  : 41.00" (adjustment: +1.00")
5-iron    : 39.00" (adjustment: +1.00")
6-iron    : 38.50" (adjustment: +1.00")
7-iron    : 38.00" (adjustment: +1.00")
8-iron    : 37.50" (adjustment: +1.00")
9-iron    : 37.00" (adjustment: +1.00")
pw        : 36.50" (adjustment: +1.00")
gw        : 36.25" (adjustment: +1.00")
sw        : 36.00" (adjustment: +1.00")
lw        : 36.00" (adjustment: +1.00")
putter    : 35.00" (adjustment: +1.00")

JavaScript

const { getStandardLengths, recommendLength, getAllRecommendations } = require('golf-club-length');

// Get standard lengths for all clubs
const standards = getStandardLengths();
console.log(standards.driver);     // 45.5
console.log(standards['7-iron']);  // 37.0

// Recommend length for a single club (wrist-to-floor is the primary method)
const result = recommendLength(72, 35, 'driver');
console.log(result);
// {
//   standardLength: 45.5,
//   recommendedLength: 45.5,
//   adjustment: 0,
//   fittingNote: 'Standard length recommended based on wrist-to-floor measurement.'
// }

// Tall golfer (6'4", wrist-to-floor 42")
const tall = recommendLength(76, 42, '7-iron');
console.log(tall.adjustment);          // 1
console.log(tall.recommendedLength);   // 38

// Height-only fallback (pass null for wrist-to-floor)
const byHeight = recommendLength(68, null, 'driver');
console.log(byHeight.adjustment);   // 0

// Get recommendations for every club at once
const bag = getAllRecommendations(76, 42);
for (const [club, rec] of Object.entries(bag)) {
  console.log(`${club}: ${rec.recommendedLength}" (${rec.adjustment >= 0 ? '+' : ''}${rec.adjustment}")`);
}

Supported Clubs

| Club | Key | |------|-----| | Driver | driver | | 3-Wood | 3-wood | | 5-Wood | 5-wood | | 4-Hybrid | 4-hybrid | | 5-Iron | 5-iron | | 6-Iron | 6-iron | | 7-Iron | 7-iron | | 8-Iron | 8-iron | | 9-Iron | 9-iron | | Pitching Wedge | pw | | Gap Wedge | gw | | Sand Wedge | sw | | Lob Wedge | lw | | Putter | putter |

Fitting Method

Wrist-to-Floor (Primary)

The wrist-to-floor measurement is the most accurate fitting method. Measure from the wrist crease (where the hand meets the wrist) straight down to the floor while standing upright in golf shoes.

| Wrist-to-Floor | Adjustment | |----------------|------------| | 27" – 29" | −1.0" | | 29" – 32" | −0.5" | | 32" – 34" | −0.25" | | 34" – 37" | Standard | | 37" – 39" | +0.25" | | 39" – 41" | +0.5" | | 41" – 44" | +1.0" |

Height (Fallback)

When wrist-to-floor is not available, height is used as a proxy:

| Height | Adjustment | |--------|------------| | Under 5'0" | −1.0" | | 5'0" – 5'3" | −0.5" | | 5'3" – 5'5" | −0.25" | | 5'5" – 5'10" | Standard | | 5'10" – 6'0" | +0.25" | | 6'0" – 6'2" | +0.5" | | Over 6'2" | +1.0" |

Adjustments apply uniformly across all clubs. For precision fitting, always use wrist-to-floor and confirm results with a certified club fitter.

Related Resources

• Golf Club Length Chart — Complete Reference
• Golf Shaft Flex Chart
• Golf Club Distance Chart
• Best Golf Launch Monitors — Reviews & Rankings

License

MIT License — copyright 2026 GolfLaunchLab. See LICENSE for details.