The calculation
If a transfer costs a flat fee F and you accept at most a share L of the amount, the smallest sensible amount is F รท L. With a 1% limit, a $1.30 fee means sending at least $130; on BNB Smart Chain, at around $0.05, $5 already passes. Platforms also have their own minimums for withdrawals and deposits; the effective minimum is the larger of the two.
minimum = max(fee รท max fee share, platform minimum)
fee share = fee รท amount, received = amount โ feeTypical fees that drive the minimum
- USDT on TRON: the fee depends on energy; without staked or rented energy a transfer burns TRX worth roughly $1โ3, more if the recipient has never held USDT.
- USDT on Ethereum: gas for a token transfer is around 45,000โ65,000 units; the dollar cost moves with the gas price.
- USDT on BNB Smart Chain, Solana and many layer-2 networks: cents or less.
- Bitcoin: priced per virtual byte, so the fee depends on how many inputs your wallet spends, not on the amount.
- Exchange withdrawals: a fixed fee per network set by the exchange, often higher than the raw network cost.
The defaults in the table are rough โ replace them with what your wallet or exchange shows today.
Minimums on the receiving side
A deposit below a service's minimum may not be credited automatically: exchanges often list a minimum deposit per network, and swap services have a minimum per pair that depends on current network costs. On KOT.CASH the widget shows the pair's minimum before you create an order; for common pairs it ranges from a few dollars to a few tens of dollars' worth of the sent coin, depending on the networks involved. Sending less than the order amount or below the minimum leads to a manual case, so check before you send.
Frequently asked questions
+What fee share is reasonable?
Many people use 1% for regular transfers and accept 2โ5% for occasional small ones. The calculator lets you set your own limit.
+Why is my exchange's withdrawal fee higher than the network fee?
Exchanges set a flat fee per network that covers their costs and fee spikes. Compare networks: the same USDT can cost $1 on one and $0.10 on another.
+Is it cheaper to send once a month than every week?
With flat fees, yes: four transfers cost four fees. Batch payments when the timing allows.
+Does the fee depend on the amount?
Network fees usually do not. Service fees often do โ swap fees are a percentage, which is why small swaps pay mostly the flat network part.
+What is KOT.CASH's minimum?
It depends on the pair and current network fees; the widget shows it live, along with the amount you will receive.
Calculations run entirely in your browser; nothing you type is sent to KOT.CASH. Results are estimates for information only and are not financial, tax or legal advice.