About MissySport

Buying activewear usually starts with a scatter of half-answered questions. What band and cup size do you actually need, and how much support does a given workout call for? Will this legging run true to size, or should you size up for the hip? What does a US 8 even mean on a UK or EU label? How many calories does an hour of HIIT really burn compared to a yoga class? How much fluid should you actually replace after a hard, sweaty session? And can that new pair of leggings go in the dryer, or will the elastane give out in a year? None of these questions are hard on their own, but answering all of them by hand, every time you shop or train, is where a simple wardrobe decision turns into a chore.

MissySport exists to take that arithmetic off your plate. Instead of long guides you have to read end to end, the site is built around a set of small, single-purpose calculators, each aimed at one part of building and maintaining an activewear wardrobe. The Sports Bra Size Calculator finds your band and cup size from underbust and bust measurements, and recommends a support level for your workout’s impact. The Legging Size Calculator finds your size from waist and hip measurements against a standard chart, with a Petite, Regular, or Tall length suggestion from your height. The Clothing Size Converter lines up US, UK, EU, and numeric bust-based sizing so a size from one region translates to another. The Workout Calorie Calculator estimates calories burned for running, HIIT, yoga, cycling, or strength training from your weight and duration, using the standard MET method. The Sweat Rate Calculator works out how much fluid you actually lost during a workout from your pre- and post-exercise weight, and how much to replace. And the Activewear Fabric Care Guide covers wash temperature, drying method, and the do’s and don’ts for spandex, polyester, nylon, cotton blends, and merino wool, so your gear keeps its stretch and performance longer.

Beyond the calculators, the blog and learnsection cover sizing and fit, sports bras and leggings, and fabric care in more depth, and the site’s museum is a separate, browsable collection you can wander through for a change of pace, with every entry, image, and fact drawn from Wikipedia and Wikimedia Commons.

A few things worth stating plainly. MissySport is an independent site, not a retailer and not affiliated with any activewear brand, manufacturer, or sizing authority. It is supported by advertising, which is how the tools stay free with no account required. Every result the tools produce — a bra size, a legging size, a converted size, a calorie estimate, a sweat rate, or fabric-care guidance — is a general estimate built on the numbers you enter and on common sizing and fitness conventions, not professional fitting or medical/fitness advice. For anything involving a persistent injury, a medical condition, or a fit problem a calculator can’t resolve, check with a qualified professional before relying on a result. If something looks off in a tool or an article, or you think a calculator is missing that would help, the contact page is the place to say so.