Calculate it yourself
What you receive
Amount received for the same conversion at BLOX and OKX, after fees and exchange rate markup.
| Conversion | BLOX | OKX |
|---|---|---|
| 500 EUR → BTC |
0.007193 BTC
cost 1.00%
|
0.007255 BTC
cost 0.15% · cheapest
|
| 1,000 USD → BTC | Not offered |
0.0130 BTC
cost 0.15%
|
| 500 EUR → ETH |
0.2483 ETH
cost 1.00%
|
0.2504 ETH
cost 0.15% · cheapest
|
| 1,000 EUR → USDT |
1,107.04 USDT
cost 1.00%
|
1,116.55 USDT
cost 0.15% · cheapest
|
| Cheapest in | 0 / 3 | 3 / 3 |
Indicative figures based on public fee schedules and the live mid-market rate. Always check the final quote with the exchange.
Side by side
| Facts | BLOX | OKX |
|---|---|---|
| Type | Crypto exchanges | Crypto exchanges |
| Our rating | 4.0 / 5 | 4.2 / 5 |
| Products | Currencies, Cryptocurrencies | Currencies, Cryptocurrencies |
| Fastest option | Instant | Instant |
| Regulation | AFM (MiCA, Netherlands) | MFSA (MiCA, Malta) |
| Founded | 2018 | 2017 |
| Headquarters | Amsterdam, NL | Victoria, Seychelles |
| Payment methods |
|
|
BLOX
Easy Dutch app for buying bitcoin and crypto
- Very easy to use
- Periodic buying
- Spread makes it pricier than an exchange
OKX
Large exchange with a MiCA licence in the EU
- Low trading fees
- Wide choice of coins
- Interface aimed at active traders
BLOX vs OKX: the real cost compared
Deciding between BLOX and OKX is less obvious than it looks. The real question is how much ends up on the other side once every fee and the exchange rate have been taken into account. That is the gap we measure here.
In our comparison, BLOX belongs to the crypto exchange category and covers Currencies, Cryptocurrencies, while OKX is filed under crypto exchange with support for Currencies, Cryptocurrencies. This already says quite a lot about where they overlap and where they do not.
Further down this page you can read our method, the trade-offs that do not show up in a single number and which one fits which situation. Because the rates are live, today’s result is not set in stone.
Why not use both?
You do not have to pick just one. It is perfectly normal to keep BLOX for one task and OKX for another. Opening an account is usually free, though identity verification can take a while.
Before every larger transfer, compare live quotes here first, since rates move and the cheaper side can flip. It is a quick check that pays off.
When you move away from one provider, make sure no balance or scheduled transfer is left behind and save your statements, as you may need them later for your tax return.
Fees vs exchange-rate margin
“No fees” is one of the most common claims in money transfer, and one of the most misleading. Often the cost simply moves into the exchange rate, where it is harder to spot. The bigger the amount, the more that margin hurts.
For this reason our comparison combines the fee and the rate margin into one number. BLOX and OKX may structure their pricing differently, one with a visible fee and a tight rate, the other with no fee and a wider spread. The amount received is the honest benchmark.
Watch for extra costs outside the conversion itself: weekend surcharges, card fees, charges by the receiving bank or withdrawal fees on crypto. Not all of these show up in our scenarios, so read the fee page before you send a large amount.
Delivery time and ease of use
The fastest delivery we have on record for BLOX is Instant; for OKX it is Instant. That is the quickest route, not the usual one for every transfer. Weekends, first-time checks and the recipient’s bank can slow things down.
Speed often depends on how you pay. Paying by card tends to be faster, and sometimes more expensive, than a standard bank transfer. When there is no rush, a slower option can save you money.
Then there is everyday use: clear status updates and an app you like save time and stress. Try the app before you move a large amount.
Same category, different details
BLOX and OKX belong to the same category, crypto exchange, so this is a like-for-like comparison. When two services do the same job, the details decide.
Look at coverage first: supported currencies, countries and payment methods. BLOX covers Currencies, Cryptocurrencies, OKX covers Currencies, Cryptocurrencies. A small gap in coverage can matter more than a small price difference.
Then compare price on the route you actually use, along with practical matters such as the app and customer service. If one disappoints, the other is an easy alternative.
How we compare BLOX and OKX
Every provider earns money in two ways: the fee you see and the markup on the rate that you often do not. As a benchmark we use the live mid-market rate, the rate banks and large traders use among themselves. The gap is the margin, and we add it to the fee.
Each conversion is checked with several sample amounts so the effect of fixed fees and percentages becomes visible. Rates refresh every 30 minutes and fees come from the providers’ published fee schedules. Special offers or paid plans can change the price you actually pay.
GoldexPay is independent. Some links on the site are affiliate links, but they never change the order or the outcome. If a provider we earn nothing from is cheaper, it still comes out on top.
Verdict
In 3 of 3 conversions that BLOX and OKX both support, OKX came out cheaper after fees and rate margin. On price alone, that makes OKX the default pick.
This does not rule out BLOX. Scroll back to the table to find which conversions BLOX still wins. If your currency pair and amount are among them, BLOX is simply the cheaper option for you.
Price is also not the only factor. You may already have a verified account with BLOX, which saves a sign-up. A few cents on a small transfer rarely beat that kind of convenience.
BLOX vs OKX as crypto exchanges
With two crypto exchanges, the cost is spread over several layers. On instant buy screens the main cost is often the spread rather than a listed fee. If you use the order book, maker and taker fees replace the spread as the main cost.
Deposits and withdrawals deserve a separate look. Bank transfers are often a cheap way in, while card deposits usually cost more. Withdrawing coins to your own wallet comes with a network or withdrawal fee that varies per asset.
And then there is the question of who holds your coins. Coins on an exchange are held by that exchange, not by you. If you plan to move coins to your own wallet, include the withdrawal fee in your comparison.
Who should pick BLOX and who OKX?
If you mainly spend abroad on holiday, focus on card payments and cash withdrawals rather than bank transfers. A multi-currency account with a card is usually the most practical tool.
For transfers to family or bills abroad, the total cost per transfer and the delivery time are what count. Large one-off sums deserve a separate check: limits, extra verification and the margin all weigh more.
When buying crypto, you need a platform that actually supports crypto, and you should compare spreads and withdrawal costs. Business users often need other features, such as multiple users and bulk payments. We compare costs only; this is not investment advice.
Small amounts vs large amounts
The cheapest choice for a small amount is not always the cheapest for a large one. Fixed fees hit small transfers hardest; percentage margins hit large ones hardest. So look at the row closest to the amount you plan to convert.
For large amounts, it can pay to ask about volume pricing, which is not always visible in our sample amounts. For any large transfer, confirm the final quote in the app before you approve it.
Regulation and safety
Price matters, but so does knowing your money is handled properly. Look for a licence or registration with a financial regulator in your country or region. Providers normally list their licence and the supervising authority on their website.
An important question is safeguarding: your balance should be held apart from the firm’s own money. That is a different kind of protection from a bank deposit guarantee scheme.
With crypto platforms, look a little further: check their registration, how they store customer assets and whether withdrawals to your own wallet are possible. Whichever you choose, switch on two-factor authentication and use a unique password.
Frequently asked questions
Is BLOX or OKX cheaper?
OKX came out cheaper in 3 of the 3 conversions we compared. For example 500 EUR → BTC: at OKX you receive 0.007255 BTC, compared with 0.007193 BTC at the other exchange. The cheapest option can change with the amount and currencies, so compare your own amount on our rate pages.
Are BLOX and OKX regulated?
Both exchanges are supervised. BLOX: AFM (MiCA, Netherlands). OKX: MFSA (MiCA, Malta). Regulation does not cover exchange rate losses or price drops of crypto and metals.
BLOX or OKX: which should I choose?
It depends on what you need. Our rating: BLOX 4.0, OKX 4.2 (out of 5). Compare what you receive for your own amount, the speed and the payment methods. This is general information, not financial advice.
Which is faster, BLOX or OKX?
Both have the same fastest option: Instant. How long it really takes depends on the payment method, the amount and the destination.
What can you do with BLOX and OKX?
BLOX: Currencies, Cryptocurrencies. OKX: Currencies, Cryptocurrencies. See each exchange page for the products and limits.