The question is controversial, as its value can be compared with the precious metal, with gold, silver and even diamond, but so far Bitcoin has a price on the crypto market. All fiat money is tied to gold and bitcoin is not, and therefore its value is not fixed by anything, and it is not affected by the price of oil, gold, etc. In the future, probably, if states start recognizing Bitcoin as the official currency, Bitcoin will be controlled and may be tied to gold.