CoinToolHub tools run in your browser with lightweight JavaScript. We publish the formulas, show worked examples, and label data sources so you can judge whether a number fits your decision.
Cryptocurrency USD prices come from live aggregated market feeds refreshed every few minutes. Fiat exchange rates update about once per day from a reputable FX API. We do not run a trading desk — we display reference rates.
All conversions route through USD: result = amount × (USD value of the source asset) ÷ (USD value of the target asset). This matches how most portfolio trackers price cross pairs and keeps crypto-to-fiat and crypto-to-crypto consistent.
Figures are estimates. Exchanges quote their own spreads; gas, slippage, and taxes are not included unless a tool says so. Refresh rates before large decisions and verify on your exchange or with a tax professional.
Your inputs stay on your device. We avoid heavy third-party scripts on tool pages to keep load times fast for Core Web Vitals. Optional ads, when present, load lazily after the calculator is interactive.
Tool pages are reviewed by Souhayb Kamal Dine for readable explanations, realistic examples, and FAQ coverage of common search questions. Updates are made when tax rules or data providers change.