golf-distance-calc 1.0.0

Golf club distance calculator based on swing speed data. Full distance charts at https://golflaunchlab.com/guides/golf-club-distance-chart

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.

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Installation

Python

pip install golf-distance-calc

JavaScript / Node.js

npm install golf-distance-calc

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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`);
}

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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

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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

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Related

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

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License

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