Lux Affairs Blog
Style & Fit Tools for a Perfect Fit
Fifteen free calculators, converters and finders that turn a tape measure into confidence — find your body shape, convert dress and shoe sizes across countries, size your watch, bracelet, bangle and necklace, discover your style and undertone, and work out what a piece really costs per wear.
- Free — always
- No email required
- Nothing stored — your numbers never leave the page
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No. 1
Body Shape Calculator
Bust, waist & hip → your shape and how to dress it
Open the calculator → -
No. 2
Dress Size Converter
US, UK, EU, AU, FR, IT, DE, JP & letter sizes
Open the converter → -
No. 3
Shoe Size Converter
From your real foot length, with width guidance
Open the converter → -
No. 4
Bra Size Calculator
Band, cup and sister sizes from two measurements
Open the calculator → -
No. 5
Ring Size Calculator
From finger circumference, diameter or a US size
Open the calculator → -
No. 6
Body Frame Size Calculator
Small, medium or large frame from wrist & height
Open the calculator → -
No. 7
Waist to Hip Ratio Calculator
Your ratio, what it means, and how to style it
Open the calculator → -
No. 8
Watch Size & Strap Calculator
Wrist size → ideal case, lug width & strap length
Open the calculator → -
No. 9
Bracelet Size Calculator
Snug, comfort or loose fit from your wrist
Open the calculator → -
No. 10
Necklace Length Finder
Choker, princess, matinee or opera for your neckline
Open the finder → -
No. 11
Bangle Size Calculator
Hand circumference → your bangle size
Open the calculator → -
No. 12
Measurement Converter
Centimetres ↔ inches, instantly
Open the converter → -
No. 13
Personal Style Quiz
Five questions to your signature style
Take the quiz → -
No. 14
Cost Per Wear Calculator
What a piece really costs each time you wear it
Open the calculator → -
No. 15
Colour Undertone Finder
Warm, cool or neutral — metals & jewel tones
Open the finder →
Measure Once, Shop Beautifully
Bookmark this page and measure before your next boutique order, vintage find or fine jewellery purchase.
For the stories behind the sizes — watch guides, styling advice and luxury wardrobe wisdom — visit Lux Affairs Blog.