How the two relate
USD is fiat currency; USDT is a USD-pegged stablecoin designed to be about 1 USDT ≈ 1 USD.
Supply and demand move USDT slightly around the peg, so a conversion differs from a straight 1:1 calculation. That gap is the peg deviation.
Formulas
USDT amount × USDT/USD priceUSDT amount × (1 − USDT/USD price)USDT amount × USDT/USD price × currency/USD rateWorked example (recompute it yourself)
Assume 1 USDT = 0.9995 USD and USD/CNY = 7.15:
10,000 USDT into USD = 10,000 × 0.9995 = 9,995 USD — 5 USD less than the 1:1 figure.
Into CNY: 10,000 USDT ≈ 9,995 × 7.15 = 71,464.25 CNY, versus 71,500 CNY at 1:1 (10,000 USD) — a difference of 35.75 CNY.
Notes
The deviation is usually small but can widen during turbulent markets; real conversions also carry a spread and fees.
This page performs the arithmetic only, with no trading cost, and is not conversion advice.
FAQ
Are USDT and USD the same thing?
No. USD is fiat; USDT is a USD-pegged stablecoin where 1 USDT ≈ 1 USD is a design target, with small deviations.
Which rate should I use for the conversion?
Use a live USDT/USD and currency rate from your exchange or a public source; the converter also accepts a manual rate so you can check the math yourself.