Mass • NIST Exact

Kilograms Stones

kg → st

1 kg = 0.1574730444 stNIST Exact

kg → st Reference Table

kg st
0.01 kg 0.001574730444 st
0.1 kg 0.01574730444 st
0.5 kg 0.07873652221 st
1 kg 0.1574730444 st
2 kg 0.3149460888 st
5 kg 0.7873652221 st
10 kg 1.574730444 st
20 kg 3.149460888 st
50 kg 7.873652221 st
100 kg 15.74730444 st
500 kg 78.73652221 st
1000 kg 157.4730444 st

Values based on NIST SP 811 conversion factors

🌍 Real-World Examples

Average adult weight (UK measurement)

70 kg = 11.02311311 st

10 stone (common UK reference)

63.5 kg = 9.999538321 st

Athletic male body weight

80 kg = 12.59784355 st

Why Convert Kilograms to Stones?

Converting between kilograms (kg) and stones (st) is one of the most common mass conversions. Whether for engineering, cooking, travel, or science, knowing how to quickly convert kg to st saves time and prevents errors.

Mass conversions between kg and st come up constantly in everyday life. International travelers need to convert luggage weight limits — airlines typically allow 23 kg (≈50.7 lb) for checked bags and 7-10 kg for carry-on. In fitness, gym equipment in the US uses pounds while most of the world uses kilograms. Cooking recipes from different countries require converting between grams, ounces, and pounds for accurate measurements.

How to Convert Kilograms to Stones

To convert kilograms to stones, use the following formula:

st = kg × 0.1574730444

Example: 1 kg = 0.1574730444 st

For example, 5 kg = 0.7873652221 st, 10 kg = 1.574730444 st, and 100 kg = 15.74730444 st. Our calculator above performs this conversion instantly with full precision — no rounding errors.

Common Use Cases

  • Average adult weight (UK measurement): 70 kg = 11.02311311 st
  • 10 stone (common UK reference): 63.5 kg = 9.999538321 st
  • Athletic male body weight: 80 kg = 12.59784355 st

Common Mistakes to Avoid

  • Confusing mass and weight: In everyday use, "weight" and "mass" are interchangeable, but in science they differ. This converter handles mass units.
  • Pound ambiguity: The avoirdupois pound (lb, used for everyday weight) differs from the troy pound (used for precious metals). This converter uses avoirdupois.
  • Rounding errors in cooking: When converting kg to st for recipes, round to the nearest practical measurement (e.g., nearest 5g or ¼ oz).

Pro Tips

  • Memorize the factor: 1 kg = 0.1574730444 st. For quick mental math, remember this base conversion.
  • Quick reference: 5 kg = 0.7873652221 st · 10 kg = 1.574730444 st · 25 kg = 3.93682611 st · 50 kg = 7.873652221 st · 100 kg = 15.74730444 st
  • Bookmark this page: Save this converter for instant access. It works offline once loaded — no internet needed.

Kilograms to Stones Conversion Table

kgst
0.01 kg0.001574730444 st
0.1 kg0.01574730444 st
0.5 kg0.07873652221 st
1 kg0.1574730444 st
2 kg0.3149460888 st
5 kg0.7873652221 st
10 kg1.574730444 st
20 kg3.149460888 st
50 kg7.873652221 st
100 kg15.74730444 st
500 kg78.73652221 st
1000 kg157.4730444 st

All values in this table are mathematically exact per NIST SP 811.

Frequently Asked Questions

How many stones are in 1 kilogram?

1 kg equals 0.1574730444 st. This is an exact conversion factor defined by NIST.

How do I convert kilograms to stones?

Multiply the value in kg by the conversion factor. For example, 10 kg = 1.574730444 st. Use our calculator above for instant results.

Is the kilograms to stones conversion exact?

Yes, this conversion is mathematically exact based on the international definition of these units (NIST SP 811).

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