About

Coaches, players and parents shouldn't have to dig through ad-choked pages or clunky apps to size a bat, work out an ERA or check a pitch-count limit. We build small, focused tools that load fast, work on a phone with one hand, and get out of your way.

What we stand for

• Accuracy first. Every formula, chart and rule is checked against official sources, and each page shows when it was last reviewed.
• Fast and free. No sign-up walls, no bloat. Tools run instantly in your browser.
• Plain English. We explain what the numbers mean, not just how to calculate them.

How we make money

The site is supported by ads and by affiliate links to gear we think is genuinely useful. If you buy through one of those links we may earn a small commission at no extra cost to you. It never changes what we recommend — see our affiliate disclosure for details.

A note on the numbers

Sizing charts and benchmarks are guidelines, not guarantees. Kids grow at different rates and leagues set their own rules. Always try gear before you buy and confirm current rules with your league.