About 57 pounds 5 ounces.
11.79 kilograms.
26 kilograms = 57.32 pounds.
26 kilograms = 57.3201882 pounds
26 pounds is approximately equal to 11.79 kilograms.
Obviously the mass of a ring may vary, but it will be grams, not kilograms.
First take the weight in pounds and multiply by 453.59. The resulting number is the weight in grams. To convert grams to kilograms, simply divide by 1000. Or, an easier option is to take the weight given in pounds and multiply by 0.45359. In this case the answer is 1.17 kilograms.
26 ounces is about 0.73709 kg
26 kilograms = 57.3 pounds.
First take the weight in kilograms and simply multiply it by 2.2. This would give you the answer in pounds. So in this case the answer is 5.73 pounds.
A best estimate for the mass of a key is 26 grams.
26 kilograms = 4.09 stone.
Multiply by 2.204622622. So 2.6 kg * 2.204622622 = 5.732018817 pounds.