The TRON network charges 100 SUN per energy unit (a network parameter called getEnergyFee, verifiable via any TRON node). A USDT transfer to an address that already holds USDT consumes about 64,285 energy ≈ 6.43 TRX burned. A transfer to a fresh address that never held USDT consumes about 130,285 energy ≈ 13 TRX — the token contract creates a new balance record, which roughly doubles the cost.
Renting energy for one hour before sending replaces the burn: delegated energy arrives at your address, your transfer consumes it, and you pay a fraction of the burn cost. This page reads rental prices from providers' public APIs every ~2 minutes — the "cheapest rental" figure above is live, not an estimate.
FAQ
Why does the calculator ask for the recipient address?
Because the recipient determines the cost. If they hold USDT, you need ~65k energy; if not, ~131k. Guessing wrong is the most common (and expensive) mistake in this niche — so we check the chain instead of asking you.
Is 65,000 energy always enough?
For one standard USDT transfer to a funded address — yes, with a small margin (the transfer itself uses ~64,285). If the recipient never held USDT, you need the double package.
What happens if I send with too little energy?
The transaction does not fail — the network burns TRX from your balance to cover the shortfall. You pay for both the rental and part of the burn, which is why the 65k/131k check matters.
Can I verify any of this myself?
Yes — that is the point. The network rate is in the chain parameters, every delegation is a public transaction, and each figure on this page links back to on-chain data. See our methodology.