How to calculate it
Doubling means a 100% gain over the current price. Required gain = target price ÷ current price − 1; for a double the target is current price × 2, so the gain is exactly 100%.
The same holds for your capital: when the position doubles, the profit equals the capital itself.
Formulas
(double price − current price) ÷ current price × 100%current price × 2capital × 2capital × (2 − 1) = capitalWorked example (recompute it yourself)
Using a BTC reference price of 78,400 USDT, the double price = 78,400 × 2 = 156,800 USDT.
Capital of 1,000 USDT becomes 2,000 USDT, a 1,000 USDT gain; capital of 5,000 USDT becomes 10,000 USDT, a 5,000 USDT gain.
The reference price is only an input. Change the price in the calculator to any current price and the double is always twice that number.
Notes
Fees are excluded. With fees on both sides, the account must rise slightly more than 100% to truly double.
"What price is a double" is arithmetic only; it does not mean the price will reach it, and this page makes no market call.
FAQ
Is doubling the same as a 100% gain?
Yes. Doubling is identical to a 100% rise; both describe the same ratio.
What is a double from 78,400?
78,400 × 2 = 156,800 USDT. For any other starting price, the double is twice that price.
Why is a little more needed once fees are included?
The buy fee reduces the coins you receive and the sell fee reduces the proceeds, so a 100% price rise gives a return slightly below 100%.