Your All-in-One Hub for Free Online Calculators & Utilities.
Professional-grade tools designed for accuracy, ease of use, and comprehensive functionality
All tools are completely free to use with no hidden costs or registration required
Built with industry-standard algorithms and formulas for reliable results
Intuitive interfaces designed for both beginners and professionals
Explore a complete suite of Cryptocurrency and DeFi tools, featuring real-time crypto calculators designed to help you make smarter, data-driven decisions.
Calculate your crypto return on investment with live market data and comprehensive profit analysis
Estimate token prices based on market cap, supply, and historical data for informed investment decisions
Calculate your cryptocurrency tax liability with support for multiple jurisdictions and tax years
Calculate potential profits from DeFi staking, farming, and liquidity provision with APY calculations
Track real-time gas fees across 12 major EVM blockchains. Compare costs for different transaction types and optimize your blockchain interactions.
Optimize your cryptocurrency portfolio with precise rebalancing calculations and real-time prices
Estimate hardware, electricity, hosting, and staking costs for running blockchain validator nodes. Calculate profits, ROI, and break-even instantly.
Professional electronics and electrical calculators designed for engineers, technicians, and DIY enthusiasts—our tools deliver instant, accurate results for all your projects.
Calculate inverter efficiency and power losses to optimize your power system performance
Calculate how long your inverter battery will last during power outages with load analysis
Estimate real-world solar panel performance loss due to weather, temperature, and environmental factors
Calculate safe current capacity for PCB traces with temperature rise and safety margin considerations
Calculate RC circuit charging and discharging times for electronic design and troubleshooting
Calculate your EV's real-world range based on battery capacity, driving conditions, and environmental factors
Powerful tools for content creators across multiple platforms—our streaming solutions generate and analyze real-time outputs, enhanced with AI for smarter results.
Analyze YouTube comments for positive, negative, or neutral sentiment using AI-powered analysis for content creators
Generate timed chat commands for Nightbot with customizable intervals and message triggers
Create and manage custom commands for Nightbot with advanced moderation and automation features
Generate BotRix commands for multiple platforms with our easy-to-use generator
Generate catchy titles and descriptions for your clips using advanced AI algorithms
Download high-quality YouTube thumbnails in seconds with support for multiple resolutions and formats
Estimate your YouTube earnings based on views, CPM, RPM and niche. Calculate potential ad revenue and sponsorship income.
The ultimate tool for content creators to capture, save, and share the best moments from live streams
Getting started with SPaul Hub Tools is simple and straightforward
Browse our collection of specialized calculators and tools across different categories
Input your values using our intuitive forms with helpful placeholders and descriptions
Receive instant, accurate calculations with detailed explanations and insights
Common questions about our tools and services
Yes, all our tools are completely free with no hidden costs, registration requirements, or usage limits. We believe in providing valuable tools accessible to everyone.
Our tools use industry-standard formulas and algorithms to ensure professional-grade accuracy. We regularly update our calculations to maintain the highest standards of precision.
We store limited data for analysis and to improve our services, but we maintain strict user privacy standards. Most calculations are performed locally in your browser. For detailed information about data retention and privacy practices, please refer to our Privacy Policy and Disclaimer.
Absolutely! All our tools are fully responsive and optimized for mobile devices, tablets, and desktop computers.
We continuously develop and add new tools based on user feedback and emerging needs. Follow us for updates on new features and tools.
Explore our comprehensive collection of free online tools and calculators designed to make your work easier and more efficient.