Why two steps are needed
Coin prices are usually quoted in USDT or USD, while each fiat currency has its own rate against the dollar.
So the conversion is: value in USD first, then apply the fiat rate. Mixing the two price sources breaks the convention.
Formulas
coins × coin price (USDT or USD)USD equivalent × target currency per USD ratesource amount × (target per USD) ÷ (source per USD)Worked example (recompute it yourself)
Hold 0.5 BTC, with BTC at 60,000 USDT and USD/CNY at 7.15:
USD equivalent = 0.5 × 60,000 = 30,000 USDT; in CNY = 30,000 × 7.15 = 214,500.
At the same rate: 100 USDT ≈ 715 CNY and 1,000 USDT ≈ 7,150 CNY.
Going the other way uses division: 214,500 ÷ 7.15 ≈ 30,000 USDT.
Notes
USDT only approximates 1 USD and drifts slightly around the peg. Treating it as USD is a simplification.
OTC desks and banks apply a bid/ask spread and fees. This tool performs the arithmetic only.
No market view is taken here: prices and rates are either entered by you or taken from a public data source.
FAQ
Why not just multiply the coin price by the rate?
You can — it is the two steps combined. The coin price is quoted in USDT, so you still pass through a USD equivalent before applying the fiat rate.
Do USDT and USD give the same result?
Mathematically they are treated as 1:1, so the result is the same. In practice USDT deviates slightly from one dollar; use the market price you see.
How often are rates and prices updated?
Data comes from public sources and refreshes through edge caching; the page shows the update time, and you can also enter a manual rate.