# IsCoinLegit > Check before you trust. ## Posts - [What Is Ethereum Gas? Explained in Simple Words](https://iscoinlegit.com/blog/what-is-ethereum-gas/): Learn why Ethereum charges gas, what gwei means and how a fee is estimated. - [What Is Bitcoin? A 3-Minute Beginner Guide](https://iscoinlegit.com/blog/what-is-bitcoin/): Understand Bitcoin, the blockchain and mining without the heavy jargon. - [What Is a Rug Pull? Explained Simply](https://iscoinlegit.com/blog/what-is-a-rug-pull/): A plain-English look at rug pulls, how they happen and what you can check before buying. - [How to Spot a Fake Crypto Website](https://iscoinlegit.com/blog/spot-fake-crypto-website/): Check the address, page behavior and wallet request before trusting a crypto site. - [Satoshi Explained: The Smallest Unit of Bitcoin](https://iscoinlegit.com/blog/satoshi-explained/): Learn what a satoshi is, why Bitcoin uses small units and how to convert between sats, mBTC and BTC. - [How to Keep Your Crypto Wallet Safe: 7 Rules](https://iscoinlegit.com/blog/keep-crypto-wallet-safe/): Seven practical habits for protecting recovery phrases, devices and transactions. - [Is Crypto Mining Still Profitable? (Honest Breakdown)](https://iscoinlegit.com/blog/is-crypto-mining-profitable/): Understand revenue, electricity, hardware and difficulty before judging whether a mining setup can make money. - [How to Check If a Crypto Token Is Safe Before You Buy](https://iscoinlegit.com/blog/how-to-check-if-a-token-is-safe/): Learn how to verify a token’s contract address, spot honeypot and rug-pull warning signs, and use our free safety checker before you invest. - [DCA Explained: A Calm Way to Invest in Crypto](https://iscoinlegit.com/blog/dca-explained/): See how fixed, regular purchases work and where this strategy can still go wrong. - [Crypto Taxes: A Simple Beginner’s Guide](https://iscoinlegit.com/blog/crypto-taxes-beginner-guide/): A general introduction to taxable crypto events, records and why local professional advice matters. - [Crypto Slang Explained: 24 Terms Beginners Must Know](https://iscoinlegit.com/blog/crypto-slang-24-terms/): Decode HODL, FOMO, FUD, DYOR, WAGMI, rekt, rug pull and other common words used in crypto communities. - [5 Red Flags of a Crypto Scam](https://iscoinlegit.com/blog/crypto-scam-red-flags/): Learn the warning signs that should make you pause before you send money or connect a wallet. - [How to Use QR Codes for Crypto Payments Safely](https://iscoinlegit.com/blog/crypto-qr-payments-safely/): Learn what a wallet QR code contains and how to scan, verify and pay without skipping critical checks. - [What Is Liquidation in Crypto Trading? (Explained Simply)](https://iscoinlegit.com/blog/crypto-liquidation-explained/): Understand how leverage can force a position closed and why a simple liquidation estimate is never an exchange quote. - [What Is Break-Even in Crypto? (With an Example)](https://iscoinlegit.com/blog/crypto-break-even-explained/): Learn what break-even means, how to calculate it and why a large loss needs an even larger recovery. - [What Is Crypto Arbitrage? (Beginner’s Guide)](https://iscoinlegit.com/blog/crypto-arbitrage-beginners-guide/): See how exchange price differences create a theoretical spread and why fees, speed and slippage can erase it. - [How to Calculate Your Crypto Profit (With an Example)](https://iscoinlegit.com/blog/calculate-crypto-profit/): Use cost, sale value and fees to understand profit, loss and return on investment. - [What If You Bought Bitcoin in 2013? How the Math Works](https://iscoinlegit.com/blog/bitcoin-what-if-math/): See how a historical Bitcoin estimate is calculated and why the result is only an educational scenario. - [Bitcoin Halving Explained: Why It Matters](https://iscoinlegit.com/blog/bitcoin-halving-explained/): Understand Bitcoin’s scheduled reward cuts, their effect on supply and why a halving does not guarantee a price rise. ## Pages - [Contact](https://iscoinlegit.com/contact/): Found an unclear explanation or have an idea for a useful calculator? Tell us what would help. - [About](https://iscoinlegit.com/about/): IsCoinLegit helps everyday users understand crypto calculations and common safety risks. - [Token Safety Checker](https://iscoinlegit.com/tools/crypto-token-safety-checker/): Scan a token contract for honeypot, tax, and rug-pull warning signs. - [Mining Profitability Calculator](https://iscoinlegit.com/tools/crypto-mining-calculator/): Estimate revenue, electricity cost and profit from your own figures. - [Crypto Slang Decoder](https://iscoinlegit.com/tools/crypto-slang-decoder/): Search 24 common crypto terms and read plain-English examples. - [Crypto Arbitrage Calculator](https://iscoinlegit.com/tools/crypto-arbitrage-calculator/): Compare two exchange prices after a simple fee estimate. - [Liquidation Price Calculator](https://iscoinlegit.com/tools/crypto-liquidation-calculator/): Estimate a leveraged position’s liquidation level and adverse move. - [Crypto Break-Even Calculator](https://iscoinlegit.com/tools/crypto-break-even-calculator/): See the price and percentage move needed to recover your cost. - [Crypto QR Code Generator](https://iscoinlegit.com/tools/crypto-qr-code-generator/): Turn a wallet address into a downloadable QR code in your browser. - [Crypto Tax Estimator](https://iscoinlegit.com/tools/crypto-tax-estimator/): Get a rough educational estimate from simplified country rules. - [Bitcoin Halving Countdown](https://iscoinlegit.com/tools/bitcoin-halving-countdown/): Count down to the estimated 2028 halving and review past rewards. - [What-If Crypto Calculator](https://iscoinlegit.com/tools/what-if-crypto-calculator/): See what a past purchase of Bitcoin, Ethereum, Solana and more could be worth today. - [Bitcoin What-If Calculator](https://iscoinlegit.com/tools/what-if-bitcoin-calculator/): Estimate what an old Bitcoin purchase could be worth today. - [Satoshi to BTC Converter](https://iscoinlegit.com/tools/satoshi-to-btc-converter/): Convert satoshi, mBTC and BTC with exact unit values. - [Crypto Unit Converter](https://iscoinlegit.com/tools/crypto-unit-converter/): Convert ETH, Bitcoin and Solana units exactly. - [Staking Calculator](https://iscoinlegit.com/tools/crypto-staking-calculator/): Estimate rewards with simple or compound growth. - [DCA Calculator](https://iscoinlegit.com/tools/crypto-dca-calculator/): Model fixed investments made weekly or monthly. - [Ethereum Gas Fee Calculator](https://iscoinlegit.com/tools/ethereum-gas-fee-calculator/): Estimate a transaction fee from gas price and gas limit. - [Profit / Loss Calculator](https://iscoinlegit.com/tools/crypto-profit-loss-calculator/): Calculate your crypto return, fees and break-even price. - [Tools](https://iscoinlegit.com/tools/): Every IsCoinLegit tool is free and runs directly in your browser — no account, no sign-up, and nothing you type is saved. [comment]: # (Generated by Hostinger Tools Plugin)