Energy Estimator

GET 
/calculator/estimate-energy

Find out exactly how much energy a TRC20 transfer will consume before you buy a rental — no guessing, no overpaying. TronAgg simulates the transfer(address,uint256) call on-chain against live network state and returns the precise energy the transaction would burn, plus the equivalent TRX cost at the current getEnergyFee rate.

Defaults to USDT; pass contract_address to estimate any other TRC20 token.

Why use it

• Size your energy rental precisely instead of relying on rough averages
• Compare energy cost across different TRC20 tokens
• Detect first-time receivers (a brand-new recipient costs ~2x more energy)

Good to know

• Energy prices move in real time — round the returned value up when placing an order
• Rate limits: 10 req/min per IP (429) and 60 req/min shared to the TRON node (503)

For a quick USDT-only check, see the USDT shortcut which takes the two addresses straight in the URL.

Request

Responses

200

Successful Response

422

Invalid TRON address format

429

Rate limit exceeded (more than 10 requests/min from your IP)

502

The TRON node could not simulate the transfer (contract error, invalid transaction, etc.)

503

The global outbound rate limit to the TRON node is exhausted — retry shortly