What makes up the exchange rate
When you see a rate on the screen, it is not simply the price of a coin on an exchange. It is the result of several layers: the market price, the difference between the buy and sell price, the service fee and transfer costs. Each layer on its own is clear, but together they are often confusing, especially when an exchanger's rate differs from the figure on an exchange chart.
Here we will go through these layers in order, show a hypothetical calculation example and explain how to compare offers so as not to lose on small things. This is not a rate forecast or a recommendation on when to exchange, but an explanation of the mechanics.
If you are just starting out, first read the general exchange guide and then come back to the details of the rate.
What the market rate is and where it comes from
The market rate of a pair, for example ETH to USDT, arises on trading platforms where sellers and buyers place orders. There is no single price: on different platforms it can differ by fractions of a percent, because each has its own order book depth and its own flow of trades.
That is why exchange services take a benchmark from one or several sources and convert it into their own rate. The benchmark price is constantly moving, so a service cannot promise that the rate an hour from now will be the same as now: it may be higher or lower, and this cannot be predicted. What matters to you is not what the price on the chart was a second ago, but what amount will be fixed in your order.
What the spread is and why it exists
The spread is the difference between the price at which a coin can be bought and the price at which it can be sold. In any market, buying costs slightly more than selling, and this difference pays for the work of those who hold liquidity and take on the risk of price changes.
- A narrow spread is typical of popular pairs with high turnover.
- A wide spread is more common for rare coins or during sharp market movements.
- The spread is not the same as a fee: it is built into the rate itself, and usually it is not visible as a separate line.
So two services can declare the same fee but give a different final amount. The difference is hidden in the rate.
The practical conclusion: to assess the real cost of an exchange, you do not need to guess which part is the spread and which is the fee. It is enough to compare how many coins will arrive at your address under identical starting conditions.
Service fee: 1% and 1.5% on BITWHITE
The service fee is payment for the work of the service itself. On BITWHITE it depends on the mode: in automatic mode, which works without an operator, the fee is 1%, and in manual mode, where the order is checked by an operator, 1.5%.
The mode is selected when the order is created, and the final amount to receive is shown already with the fee included. This matters: look not at the percentage separately but at the bottom-line figure in the form. The difference between the modes in substance is described in the article on automatic and manual mode.
Network fee: a separate expense item
Besides the service fee, there is a network fee. It goes not to the service but to the blockchain: the miners or validators who include your transaction in a block. The size depends on the network and its load.
You pay the network fee for sending your coins from your own wallet. Do not confuse these two payments: a low service fee does not cancel the network charge. A detailed comparison is in the material on the service fee and network fee. If you are exchanging ETH, an example of gas calculation is covered in the article how to exchange ETH to USDT.
What “the rate is fixed at the moment the order is created” means
The market price moves every second, while a blockchain payment takes minutes. So that this does not turn an exchange into a lottery, on BITWHITE the rate is fixed at the moment the order is created. After that the price on the chart can go up or down, but the amount you will receive for the order is determined.
Fixing gives predictability, but it comes with conditions:
- the payment address is valid for up to 2 hours;
- you must send the exact amount and in the selected network;
- a payment after the deadline, for a different amount or in a different network is processed manually by the operator through support.
If it matters to you to understand what happens after payment, see how long to wait for confirmations in the network you need. Fixing does not guarantee a benefit: if the market moved in your favor after the order was created, the amount will still remain fixed, and vice versa.
Why the rate differs from the exchange rate
The most common question: on the exchange the price is this, but at the exchanger you get less. There are usually several reasons:
- Service fee. Part of the amount goes to pay for the work of the service.
- Spread. An exchange shows the price of the last trade, while when buying or selling at market you pay according to the orders in the order book.
- Volume. The larger the amount, the more it can shift the execution price.
- Network costs. A blockchain transfer also costs money.
- Time. The rate at the moment the order is created and the price on the chart an hour later can diverge.
An exchange has its own fees for trading and withdrawal, so the correct approach is to compare the full path, not a single figure. For the overall picture of the differences between an exchanger, an exchange and P2P, see the article how to choose between an exchanger, an exchange and P2P.
A hypothetical example: how the final amount is calculated
Let us take figures for illustration, not as a real rate and not as a forecast. Suppose the market benchmark for the pair is 1 ETH for 3000 USDT, and you give 1 ETH. Without fees you would receive 3000 USDT.
- If the service fee is 1%, it corresponds to about 30 USDT, and before network costs about 2970 USDT remains.
- If the fee is 1.5%, it corresponds to about 45 USDT, and about 2955 USDT remains.
The difference between the modes in this example is about 15 USDT. The real amount is shown by the exchange form: it takes into account the current rate, the selected mode and the specifics of the pair. The figures in the example are needed only to understand the scale and the order of calculation.
Why exchanging back and forth does not return the original amount
A common surprise: a person exchanged USDT to BTC and some time later immediately back, and received less than they gave. The reasons are not mysterious. With each exchange you pay the service fee, the spread is taken into account, and with each sending on the blockchain a network fee is paid. In addition, the price may have changed in the time between exchanges.
It is useful to keep this in mind when planning: every extra operation costs money, so it is reasonable to exchange the needed amount at once rather than split it without a reason. Examples of specific pairs: exchange USDT to BTC and exchange BTC to USDT.
Also note that splitting into many small orders increases the share of network costs, because the network fee usually does not depend on the transfer amount as strongly as the service percentage does.
How to compare offers by the final amount to receive
An attractive rate without accounting for fees says nothing. A reliable way to compare is this:
- Take the same amount and the same pair at each service.
- Choose the same receiving network, otherwise the networks will give different costs.
- Find in the form the final amount you will receive at your address.
- Check whether it is shown before the order is created and whether the rate is fixed.
- Take into account the network fee that you will pay when sending.
- Compare precisely the result in coins, not the percentage or the rate.
Reliability is also worth comparing: an offer that is too good is a reason to be cautious, and the signs are described in the article on fake exchangers.
Why an overly favorable rate should raise suspicion
If one service offers a rate noticeably better than the market, the question is not whether you are lucky. The question is where the service gets its profit and what you are risking. A noticeably inflated rate can be bait: a person creates an order, sends coins, and then the amount changes, extra conditions appear or the service stops responding.
Practical signs to be cautious about:
- the final amount changes after payment without your consent;
- the rate is not shown before the order is created;
- you are asked to write in a messenger for an exchange “at a special rate”;
- you are asked for a seed phrase or private key.
The last one is unacceptable under any circumstances. A good reminder of the security rules is in the article on wallet security.
What happens if the payment amount does not match
The rate is fixed for the amount specified in the order. If you sent less or more, the calculation for the order no longer matches the actual payment. In that case the order goes to the operator for manual review, and further actions are determined through the support request.
You should not send the payment again. In your request, give the order number, the coin, the amount and the txid. Such situations are covered in detail in the material on underpayment and overpayment. The main prevention is simple: copy the amount from the order and check that the wallet does not deduct the fee from the amount being sent.
Common mistakes when evaluating the rate
- Comparing the rate, not the result. A low fee percentage does not guarantee a larger amount in hand.
- Comparing different networks. Receiving USDT in different networks gives different costs for onward transfer.
- Waiting for the “best moment”. The order has already been created and the rate is fixed, but the address deadline is limited.
- Forgetting the network fee. Because of it, less may arrive on the balance than you calculated.
- Relying on the exchange chart. It shows the price of the last trade, not your final amount.
- Changing the amount after the order is created. A new amount requires a new calculation.
If you notice an error in the amount or the pair before sending the payment, do not send money to the wrong order. It is better to create a new order with the correct parameters and check the result than to sort out the discrepancy through support later.
Another typical trap: comparing rates taken at different times. Market prices move, so offers should be compared at the same time, within a few minutes, otherwise the difference will be explained by market movement, not by the quality of the service.
Checklist: how to check the rate before an order
- The required coins and the receiving network are selected.
- The final amount to receive is shown before the order is created.
- It is clear which mode is selected and what the fee is: 1% or 1.5%.
- The network fee for sending is taken into account.
- The amount in the order matches the amount that you will send.
- The order number and link are saved.
- Sending is planned before the address validity period ends.
- The offer does not look suspiciously favorable.
How this relates to exchanging on BITWHITE
On BITWHITE you choose the coin you give and the coin you receive, the amount and the receiving address. The rate and the final amount to receive are shown before the order is created and are fixed at the moment the order is created. No registration is needed.
The service fee is 1% in automatic mode and 1.5% in manual mode. In automatic mode, a refund address is specified. If an order needs to be resolved manually, support can be found on the “Contacts” page, and the service never asks for a seed phrase or private keys. The only official domain is bitwhite.net.
The general order of actions is described in the guide how to exchange cryptocurrency. To see the final amount for your pair, open the BITWHITE exchange form.