Silver belcher chains can be very long. But, it will depend on your choices. Generally, it varies nearly from 7.5 inches to roughly 35 inches. You can craft it longer or shorter according to your preferences. Besides, the diameter can be varied as well. If you want more details, a rough measurement we can guide you. For example, a 7.55 mm silver belcher chain may require roughly 62 grams of silver. This might be increased if you opt for longer chains.