Four free calculators we built because every gym owner, retailer, and distributor we work with ends up needing them. No accounts, no email gates, no ads. Use them once or embed them on your own site — credit appreciated but not required.
Boxing Glove Fit Calculator
Find the right glove ounce in 10 seconds
Body weight, hand circumference, age group, and intended use (training / sparring / federation rules) → recommended size with hand-wrap and federation-rule adjustments.
- Adult, junior, and child fittings
- Metric & imperial units
- Federation modes (World Boxing, Pro, Muay Thai, kickboxing)
- Pre-fills the Quote form with your size
Open the calculator →
MMA Glove Fit Calculator
S / M / L / XL by hand circumference
MMA gloves don’t size by ounce — they use hand circumference and style (training / sparring / grappling / pro competition). Separate fittings for IMMAF and UFC-style rules.
- Male / female sizing differences
- 6 glove style modes
- BJJ no-gi grappling option
- Pre-fills the Quote form
Open the calculator →
Wholesale ROI Calculator
Model landed cost and margin before you order
Supplier quote, freight, duty, target retail, sell-through → landed cost per piece, gross margin, break-even units, payback time, margin-quality verdict. Multi-currency.
- 8 inputs, 8 outputs
- Margin-quality verdict (loss / tight / healthy / premium)
- USD / EUR / GBP / AUD / CAD
- Useful for comparing supplier quotes side-by-side
Open the calculator →
Container Loading Calculator
Plan sea freight before you commit
Product type, carton dimensions, order quantity → cartons needed, total CBM, container fill %, and a recommendation between 20-foot, 40-foot, 40HC, LCL, or air freight.
- 10 product-type presets + custom dimensions
- Auto-selects best container size
- Indicative freight rates per destination
- Quick-reference: pieces-per-container table
Open the calculator →
How these calculators came about
The Glove Fit calculators started as paper laminates stuck on the walls of gyms that order from us. They mapped body weight (or hand circumference for MMA) to glove size, with separate adjustment columns for use case. We digitised both and made them embeddable.
The Wholesale ROI Calculator started as a spreadsheet template we used to send first-time buyers asking “is 250 pieces worth it?” — the answer always involved the same eight inputs.
The Container Loading Calculator started as a pencil-and-paper exercise we did with every new buyer to work out whether their order fit a 20-foot or 40-foot container. We turned it into a web tool when we noticed we were doing the same arithmetic three times a day.
All four are open-methodology — the underlying tables and formulas are documented on each tool’s page. Use them as-is, fork them, or build your own.
Embed any calculator on your site
Free to embed — useful if you run a gym, fight-gear blog, or e-commerce shop and want to give your audience a quick utility.
Boxing Glove Fit:
<iframe src="https://oxfitsports.com/glove-fit-calculator/?embed=1"
width="100%" height="640" frameborder="0" loading="lazy"
title="Boxing Glove Fit Calculator"></iframe>MMA Glove Fit:
<iframe src="https://oxfitsports.com/mma-glove-fit-calculator/?embed=1"
width="100%" height="600" frameborder="0" loading="lazy"
title="MMA Glove Fit Calculator"></iframe>Wholesale ROI Calculator:
<iframe src="https://oxfitsports.com/wholesale-roi-calculator/?embed=1"
width="100%" height="800" frameborder="0" loading="lazy"
title="Wholesale ROI Calculator"></iframe>Container Loading Calculator:
<iframe src="https://oxfitsports.com/container-loading-calculator/?embed=1"
width="100%" height="600" frameborder="0" loading="lazy"
title="Container Loading Calculator"></iframe>Tools we’re working on next
- Custom-Print Cost Modeller — for OEM buyers comparing embroidery vs sublimation vs debossing across order sizes.
- Belt & Wrap Length Selector — for weightlifting belts, hand wraps, and wrist supports.
- Order Pacing Planner — for retailers working out reorder cadence based on sell-through.
If you have a tool you wish existed, email us — we build the ones our buyers actually ask for.
Need a quote?
Once you’ve sized your order and modelled the costs, send your spec to our quote request form. Reply within 24 hours, free design mockup for OEM, MOQ from 50 pieces.
Related: All buyer resources, Full sizing chart, Material comparison.