Tron · Fees

Fee tracker

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Energy price

100 sun

0.0001 TRX per unit · burned by contract calls

Bandwidth price

1,000 sun

0.001 TRX per byte · burned by tx size

Free bandwidth / day

600 bytes

~2 simple transfers per day at no cost

Fee levels

Cost of a simple transfer in TRX

Bandwidth for a TRX transfer, energy for a USDT transfer · 1 TRX = $0.32

Transfer	Price	Cost	USD
TRX transfer268 bytes bandwidth	0 TRX (free quota)	0TRX	$0.00
TRX transferquota used up	1,000 sun/byte	0.268TRX	$0.09
USDT transfer65,000 energy	100 sun/unit	6.5TRX	$2.11

Tron charges for two resources instead of gas: bandwidth (bytes of the transaction) and energy (computation in smart-contract calls).
Every account gets a free daily bandwidth quota; a plain TRX transfer is ~268 bytes, so it is free unless you send many transfers per day.
Contract calls such as a TRC-20 USDT transfer burn energy (≈ 65,000 units). Cost in TRX = energy × energy price ÷ 1,000,000 sun.
Freezing (staking) TRX grants energy or bandwidth instead of burning TRX, which is how high-volume senders avoid fees.
Recipients that have never held USDT cost extra energy on the first transfer because a new storage slot is created.