Estimate how much energy your USDT transfers need — and what you save renting it instead of burning TRX.
Network constants: burning charges 100 sun per missing energy unit and 1,000 sun per byte of bandwidth (1 TRX = 1,000,000 sun). A USDT transfer uses approximately 345 bytes of bandwidth — free daily bandwidth often covers it.
Pick an operation, set how many transfers you plan to make, and choose a rental duration — the calculator totals the energy required, fetches the live TronSave price for that exact amount, and compares it with what you'd pay burning TRX. Everything runs in your browser: no wallet connection and no sign-up.
A USDT (TRC-20) transfer currently consumes approximately 64,285 energy when the recipient already holds USDT, and approximately 130,285 energy when the recipient's USDT balance is zero, because creating a new balance record costs extra. Much of that comes from TRON's dynamic energy model, which adds a penalty on busy contracts like USDT — so the exact figure varies with network usage. Each transfer also uses roughly 345 bandwidth.
Without enough energy, the TRON network burns TRX from your balance at 100 sun per missing energy unit — roughly 6.4 TRX for a transfer to a funded recipient, or around 13.4 TRX including bandwidth for an empty one. Renting the same energy on the TronSave market is often meaningfully cheaper, depending on the live rate and the duration you choose, and the energy arrives in seconds.