The rising price of Bitcoin often gives the impression that investing in cryptocurrency has a high barrier to entry. However, even with as little as $15 (around 100 CNY), you can still buy Bitcoin—just a small fraction of one coin. But how much exactly can you purchase? What’s the most cost-effective method? And once you’ve bought Bitcoin, how do you convert it back into cash? This comprehensive guide walks you through every step of buying Bitcoin on OKX and securely withdrawing your funds.
Whether you're a beginner or looking to refine your crypto transaction process, this tutorial ensures clarity, safety, and efficiency.
Getting Started: Register and Verify Your OKX Account
Before trading, you’ll need an account on OKX, one of the world’s leading cryptocurrency exchanges. To get started:
- Visit the official OKX website.
- Complete registration using your email or phone number.
- Enable two-factor authentication (2FA) for enhanced security.
- Proceed with identity verification (KYC), which is required for higher trading limits and C2C transactions.
Once verified, you’re ready to begin buying digital assets.
👉 Discover how easy it is to start your crypto journey today.
Step 1: Buy USDT via C2C Trading
The most efficient way to enter the market is by first purchasing USDT (Tether)—a stablecoin pegged to the US dollar—using fiat currency like Chinese yuan (CNY). Here's how:
- Navigate to the [C2C Buy] section on OKX.
- Select USDT as the cryptocurrency and input your desired amount (e.g., 100 CNY).
- Choose a payment method (e.g., Alipay, WeChat Pay, or bank transfer).
- Review the exchange rate and fees—typically, 100 CNY will get you approximately 13.9 USDT.
- Click [Preview Order], then [Get Payment Details].
You'll now see the seller’s payment information. Transfer the exact amount to them using your chosen method.
After completing the transfer:
- Click [I have paid].
- Wait for the seller to confirm receipt.
- Once confirmed, OKX releases the USDT to your funding account.
This peer-to-peer system ensures flexibility and low fees while maintaining transaction security.
Step 2: Transfer USDT to Your Trading Account
To trade USDT for Bitcoin, move your funds from the funding account to the trading account:
- Go to [Assets] > [Transfer].
- Select USDT as the currency.
- Choose transfer direction: From Funding Account to Trading Account.
- Enter the full amount or a portion you wish to use.
- Confirm the transfer.
This process usually takes just seconds, after which your USDT is ready for use in spot trading.
Step 3: Purchase Bitcoin Using USDT
Now that your USDT is in the trading account, it’s time to buy Bitcoin:
- Tap [Trade] at the bottom of the screen.
- Search for the BTC/USDT trading pair.
- Choose between Limit Order (set your own price) or Market Order (instant execution at current market price).
For beginners, Market Order is simpler and faster.
Here’s how:
- Select [Buy BTC].
- Enter the amount of USDT you want to spend (e.g., 14 USDT).
- Confirm the purchase.
Within moments, your Bitcoin will appear in your trading wallet. Congratulations—you now own part of the world’s first cryptocurrency!
Understanding Core Cryptocurrency Keywords
To help improve search visibility and user understanding, here are key terms used throughout this guide:
- Bitcoin (BTC) – The original decentralized digital currency.
- USDT (Tether) – A stablecoin backed 1:1 with USD, widely used for trading.
- C2C Trading – Peer-to-peer transactions where users buy/sell crypto directly.
- Funding Account – Holds deposited funds before they’re moved to trade.
- Trading Account – Used for active trading on spot, futures, or margin markets.
- KYC (Know Your Customer) – Identity verification required by exchanges.
- Market Order – Immediate execution at current market price.
- Limit Order – Buy/sell at a specified price.
These keywords naturally support SEO while enhancing reader comprehension.
Frequently Asked Questions (FAQ)
Can I buy Bitcoin with only 100 CNY?
Yes! You don’t need thousands to start. With 100 CNY (~14 USDT), you can purchase a fractional amount of Bitcoin. Cryptocurrencies are divisible up to eight decimal places, so even small investments give you real ownership.
Is C2C trading safe on OKX?
Absolutely. OKX acts as an escrow service during C2C trades. The platform holds the seller’s crypto until you confirm payment, protecting both parties from fraud.
Why should I buy USDT before Bitcoin?
Using USDT allows you to lock in value without volatility. It also offers better liquidity and lower fees when entering major trades like BTC purchases.
How long does it take to withdraw money from OKX?
After selling USDT via C2C, once the buyer pays you, withdrawal time depends on your bank or payment app—usually within minutes. The entire process from sale to cash receipt typically takes under 30 minutes.
Are there any hidden fees?
OKX clearly displays all fees upfront. While some sellers may charge small premiums, choosing reputable ones minimizes extra costs. There are no surprise charges during transfers or withdrawals.
Can I sell Bitcoin directly for cash?
Not directly on OKX. You must first convert BTC to USDT (or another stablecoin), then use C2C to sell USDT for fiat currency like CNY and receive cash in your local bank or e-wallet.
👉 See how fast and secure crypto-to-fiat conversion can be.
Step 4: Convert Bitcoin Back to Cash
When it’s time to cash out, follow these steps:
- Go to the [Trade] tab and select BTC/USDT.
- Choose [Sell BTC] using Market Order for instant results.
- Enter the amount (e.g., full balance) and confirm the sale.
Your proceeds will be in USDT in your trading account.
Next:
- Transfer USDT back to your funding account via [Assets] > [Transfer].
- Head to [C2C Sell].
- Choose USDT as the coin to sell.
- Set the amount and preferred payment method (Alipay, WeChat, etc.).
Now select a reliable buyer:
- Look for high trade volume, completion rate, and long registration history (e.g., registered since 2022).
- Avoid new or low-rated traders.
Click [Sell], enter details, and wait for the buyer’s payment.
Only after confirming receipt in your bank or wallet should you click [Confirm Receipt] on OKX. The system then releases USDT to the buyer.
This cautious approach prevents scams and ensures smooth transactions.
Final Tips for Safe and Efficient Trading
- Always double-check wallet addresses and transaction amounts.
- Use trusted networks when logging into OKX—avoid public Wi-Fi.
- Regularly update your app and enable login alerts.
- Keep private keys secure; never share them with anyone.
👉 Maximize your trading efficiency with a trusted global exchange.
By following this step-by-step process, anyone—from beginners to experienced users—can confidently buy Bitcoin on OKX and withdraw funds when needed. With low minimums, strong security features, and intuitive tools, entering the world of digital finance has never been more accessible.
Remember: Start small, learn consistently, and always prioritize safety over speed.