Convert ounces to stones for body weight, fitness tracking, and UK shipping. Accurate calculator with conversion factor 1 stone = 224 ounces. Real-world examples.
1 ounce equals 0.004464279639394455 stone
Formula: st = oz × 0.00446428
Converting between ounces and stones is essential for professionals across health, fitness, and logistics sectors. With 1 stone equaling exactly 224 ounces (or 14 pounds), understanding this conversion prevents significant measurement errors in clinical settings, fitness tracking, and international shipping operations where weight specifications determine compliance and safety.
Weight measurement accuracy directly impacts medical diagnoses, fitness program effectiveness, and shipping cost calculations. A 10-stone person weighs 3,360 ounces (140 pounds), and errors in conversion can lead to incorrect medication dosages, inaccurate fitness goals, or shipping overcharges. The stone unit remains standard in UK healthcare and fitness industries, making precise conversion critical for international medical records and athletic performance tracking.
Healthcare professionals in the United Kingdom and Commonwealth nations use stones to record patient weight in medical records, calculate medication dosages based on body weight, and track weight-related health conditions. Converting between ounces and stones ensures accurate clinical documentation when working with international patients or comparing historical medical data across different measurement systems.
Personal trainers, nutritionists, and athletic coaches in the UK and Ireland use stones to track athlete body weight changes, calculate strength-to-weight ratios, and monitor progress toward fitness goals. Converting weight measurements between ounces and stones allows coaches to maintain consistent records while communicating with international sports organizations that use different weight units.
| ounces | stones |
|---|---|
| 10 oz | 0.044643 st |
| 50 oz | 0.223214 st |
| 100 oz | 0.446428 st |
| 500 oz | 2.23214 st |
| 1000 oz | 4.46428 st |
Formula: st = oz × conversion factor
The ounce is a widely used unit for measuring weight. It is commonly used in various applications and industries worldwide.
The stone is a widely used unit for measuring weight. It is commonly used in various applications and industries worldwide.
This ounce to stone converter uses high-precision conversion factors to ensure accurate results for professional and academic use.
Our calculator provides results with up to 10 decimal places for maximum accuracy.
Exactly 224 ounces equal 1 stone. This breaks down as 1 stone = 14 pounds, and since 1 pound = 16 ounces, the calculation is 14 × 16 = 224 ounces. This precise conversion is why the stone unit has persisted in UK healthcare and fitness industries for centuries—it provides clean, reliable measurements for body weight tracking and medical documentation.
Historical standardization created this divide. The British Imperial system officially defined the stone as 14 pounds through the Weights and Measures Acts of the 19th century. The United States, while adopting imperial measurements, standardized on pounds for everyday use and never formally adopted the stone. Today, the stone remains embedded in UK culture through healthcare systems, fitness industries, and everyday conversation, while Americans use only pounds and ounces for weight measurement.
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