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Stock Calculator is a free online calculator for stock and cryptocurrency traders. Its main purpose is to quickly calculate trading profit and loss, return on investment, breakeven price, and average cost basis. The page says it was built by a group of traders with long-term experience trading US/HK/CA/JP stocks, so its use case leans more toward personal investment assistance than enterprise-grade research or asset management SaaS.
The tool lets users enter buy/sell commissions, number of shares, price per share, trade direction, current price, and capital gains tax rate, with support for multiple currencies. It can add multiple trades, supports bulk editing, and outputs results instantly. Highlights include the ability to copy a trade URL or share results via social buttons, dark mode by default, and keyboard shortcuts such as s/S, b/B, and Enter. The site also provides trading examples and investment articles to help users understand common return scenarios.
The main text clearly describes it as a free tool. No subscription plans, enterprise edition, payment methods, or trial period information were found. In terms of third-party integrations, the page only mentions that the makers have used platforms such as IB, Moomoo, and Firstrade; it does not state that there are data connections to brokers or market data sources. It also does not disclose API access, developer documentation, team collaboration, permission management, audit logs, SSO, or other enterprise software capabilities. For data security, only Privacy and TOS links are shown; the main text does not explain encryption, compliance certifications, or data retention policies.
The advantages are that it is free, easy to use, and covers common variables such as commissions, tax rates, current price, and multiple trades, making it suitable for quick post-trade reviews or scenario calculations. Shareable links and keyboard shortcuts also improve the lightweight user experience. The downside is that its functional boundaries are clear: it is not a portfolio management system, and it does not offer automatic position syncing, real-time quotes, report analysis, or enterprise-grade governance features. Support and compliance disclosures are also limited.
It is suitable for individual stock/cryptocurrency traders, investment learners, and anyone who needs to temporarily calculate profit/loss and average cost. It is less suitable for institutional investing, team-based research, or enterprise users with requirements around data compliance, permissions, and system integration. The main text does not provide information about access from China, so actual network connectivity, payment support, and localization are all unknown. Alternatives may include Excel/Google Sheets templates, built-in return calculators in brokerage apps, TradingView, or tools from domestic brokerages and Xueqiu-style platforms.
⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on stockcalculator.io official site.
stockcalculator.io is an Unknown Finance provider. TG4G tracks its product information, an overall rating of 6.0/10, and a China-accessibility score of China direct-connect friendly. Click "Visit Official Site" to reach stockcalculator.io directly.