golf-distance-calc

Golf club distance calculator based on PGA Tour swing speed data. Estimates carry and total distance for all 13 major club types given a swing speed and optional altitude.

For full interactive distance charts, shaft flex guides, and launch monitor reviews, visit GolfLaunchLab.com.

Installation

Python

pip install golf-distance-calc

JavaScript / Node.js

npm install golf-distance-calc

Usage

Python

from golf_distance_calc import estimate_distance, get_all_distances

# Single club estimate
result = estimate_distance("driver", 100)
print(result)
# {
#   'carry_yards': 243.4,
#   'total_yards': 265.3,
#   'ball_speed_mph': 148.0,
#   'launch_angle_deg': 10.5
# }

# With altitude (Denver, CO — ~5,280 ft)
result = estimate_distance("7iron", 85, altitude_ft=5280)
print(f"Carry: {result['carry_yards']} yards")
# Carry: 185.3 yards

# Full bag distances from driver swing speed
bag = get_all_distances(100)
for club, distances in bag.items():
    print(f"{club:8s}: {distances['carry_yards']:5.1f} carry / {distances['total_yards']:5.1f} total")

Example output for get_all_distances(100):

driver  : 243.4 carry / 265.3 total
3wood   : 236.4 carry / 255.3 total
5wood   : 233.0 carry / 249.3 total
hybrid  : 225.7 carry / 241.5 total
4iron   : 226.8 carry / 242.7 total
5iron   : 220.9 carry / 234.2 total
6iron   : 215.2 carry / 228.1 total
7iron   : 205.6 carry / 217.9 total
8iron   : 197.7 carry / 209.6 total
9iron   : 188.2 carry / 199.5 total
pw      : 178.3 carry / 187.2 total
sw      : 160.3 carry / 166.7 total
lw      : 148.2 carry / 152.6 total

JavaScript

const { estimateDistance, getAllDistances } = require('golf-distance-calc');

// Single club estimate
const result = estimateDistance('driver', 100);
console.log(result);
// {
//   carryYards: 243.4,
//   totalYards: 265.3,
//   ballSpeedMph: 148.0,
//   launchAngleDeg: 10.5
// }

// With altitude (Denver, CO — ~5,280 ft)
const result2 = estimateDistance('7iron', 85, 5280);
console.log(`Carry: ${result2.carryYards} yards`);
// Carry: 185.3 yards

// Full bag distances from driver swing speed
const bag = getAllDistances(100);
for (const [club, distances] of Object.entries(bag)) {
  console.log(`${club}: ${distances.carryYards} carry / ${distances.totalYards} total`);
}

Supported Clubs

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

Methodology

Distances are calculated from PGA Tour baseline data (driver ~113 mph) and scaled linearly by swing speed ratio. Ball speed is derived from the smash factor for each club type. Altitude adjustment adds approximately 2% carry distance per 1,000 feet of elevation.

For a deeper explanation of the methodology, distance charts by handicap level, and how launch monitors measure these numbers, see:

• Golf Club Distance Chart — Full Guide
• Golf Shaft Flex Chart
• Average Swing Speed by Age & Handicap

Related

• Best Golf Launch Monitors — Reviews & Rankings
• How to Increase Swing Speed

License

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