Free, accurate calculators and visualizers designed mainly for fun, but can be used to optimize your weightlifting and home gym experience. No ads, no signup required.
Choose the calculator or visualizer that fits your fitness goals
Analyze the return on investment for your home gym setup. Compare equipment costs against gym membership fees to see how quickly you break even. See how much time you save by working out at home.
Visualize the weight of a barbell with the plates available. See how much weight you can lift with the plates you have. Adjust the target weight and barbell types to see different configurations.
Visualize the weight of a barbell with the plates available. See how much weight you can lift with the plates you have. Adjust the target weight and barbell types to see different configurations.
Built with Svelte for instant calculations and smooth interactions. No loading delays.
No tracking, no data collection, no signup. Your calculations stay on your device.
Use it anywhere - gym, home, or on the go. Fully responsive on all devices.
This fitness calculator suite was born out of a simple need: accurate, fast, and distraction-free tools for weightlifting enthusiasts and home gym owners.
Built with modern web technologies: The entire application is powered by SvelteKit, delivering exceptional performance and instant reactivity. Every calculation updates in real-time as you type, with zero lag or loading states.
Open source and transparent: All calculations are performed client-side in your browser. No server processing, no data storage, no tracking. What you enter stays on your device.
Developer Note: This project showcases practical web development skills including TypeScript, reactive state management, responsive design, Chart.js integration, and SEO optimization. Built as a learning project that solves real problems for the fitness community.
More calculators and visualizers are in development. Have a suggestion? Get in touch.