Free Cattle Weight Calculator
Estimate your cattle's weight using Agarwal's Formula - just measure heart girth and body length
Skip the Tape Measure Entirely
While tape measurements work, CattleWeight AI uses your phone's LiDAR camera to estimate weight in just 15 seconds with ±3% accuracy. No measuring tape. No moving animals to handling systems. No labor-intensive setup. Just walk up to any animal in the field and scan.
1. Heart Girth (Circumference)
Measure around the chest, just behind the front legs and over the top of the shoulders. The tape should be snug but not tight. Measure in centimeters.
2. Body Length
Measure from the point of the shoulder (where neck meets shoulder) to the pin bone (rear point of hip). Keep the tape along the side of the animal. Measure in centimeters.
Measure around the chest behind front legs
Measure from shoulder point to pin bone
About Cattle Weight Estimation
Understanding the methods and accuracy of weight calculations
Health Monitoring
Check weak animals weekly to track recovery and decide when treatment is needed - without moving them to scales
Sales Timing
Know when calves hit target weight (e.g., 200 kg) and sell at optimal market conditions - check them right in the pasture
Breeding Selection
Compare offspring weights at specific ages (3 months, 6 months) to identify top performers for your breeding program
Culling Decisions
Assess market value of cull cows and bulls to determine the best moment to sell based on actual weight data
Medication Dosing
Ensure accurate drug administration based on current weight
Professional Scales: ±1% accuracy (gold standard)
LiDAR Technology (CattleWeight AI): ±3% accuracy
No tape needed, 15-second scan
Tape Measurements: ±5-8% accuracy (this calculator)
Visual Estimation: ±15-25% accuracy
- Measure when the animal is calm and standing square
- Use a flexible measuring tape designed for livestock
- Take measurements at the same time of day
- Measure multiple times and average the results
- Keep the tape level and snug but not tight
- Account for pregnancy, bloating, or recent feeding
Ready for the Future of Cattle Management?
Join ranchers who are already using LiDAR technology to weigh cattle faster and more accurately
Launching end of 2025 • Early access available now