Advanced Spearfishing Calculator Depth (meters) Bottom Time (minutes) Surface Interval (hours) Water Temperature (°C) Current Strength Weak Moderate Strong Diver Experience Beginner Intermediate Expert Calculate Safety Recommendations Depth Factors (USA Standards) ▪ Recommended max depth for recreational: 30m ▪ Nitrogen narcosis risk increases below 30m ▪ OSHA commercial diving limits: 50m Bottom Time Calculations ▪ Based on US Navy dive tables ▪ Includes 10% safety margin ▪ Adjusted for water temperature and currents More Spearfishing calculator Spearfishing Weight Belt CalculatorSpearfishing Weight CalculatorSpearfishing Band Calculator
