Dress Size Calculator
Find Your Perfect Fit Across UK, USA, EU, and Australian Sizing Standards
💡 Pro Tips for Accurate Results:
Measure on bare skin or wear fitted undergarments. Use a soft, flexible measuring tape. Measure at the same time of day, typically morning before eating, for most consistent results. Have someone help if possible, as it's difficult to measure yourself accurately. Take measurements twice to verify accuracy before using the calculator.
✅ Your Dress Size:
✅ Your Ideal Dress Length:
📊 Your Weight Loss Dress Size Projection:
🌍 International Dress Sizing Standards
UK Sizing System:
UK uses even numbers (6, 8, 10, 12, 14, 16, 18, 20, 22). Based on bust measurements in centimeters. Most common system for European retailers and high street brands. Includes standard sizing for petite and tall variants.
USA Sizing System:USA uses even numbers (2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22) with a 2-size difference from UK. Based on bust, waist, and hip measurements. Standard sizing assumes 162 cm height. Sizes 0-16 are considered regular; 18+ are petite/plus sizes depending on brand.
EU Sizing System:EU follows EN 13402 standard with even numbers (32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52). Each size represents a 4 cm difference in bust measurement. Most standardized internationally. Size = ⌊(Bust measurement ÷ 2)⌋, rounded to nearest even number. Provides most consistent sizing across brands.
Australian Sizing System:Australia uses even numbers identical to UK (6, 8, 10, 12, etc.). Based on EN 13402 standard similar to EU. Historically aligned with British sizing. Most Australian online retailers follow this standard exclusively.
Formula for EU Dress Size:EU Size ≈ ⌊(Bust measurement in cm ÷ 2)⌋ (rounded to nearest even number)
📊 Complete International Dress Size Chart
All Regions: Bust, Waist, Hip Measurements:
Height to Dress Length Guide:
| UK Size | USA Size | EU Size | AU Size | Bust (cm) | Waist (cm) | Hip (cm) | Size Name |
|---|---|---|---|---|---|---|---|
| 6 | 2 | 34 | 6 | 79-83 | 59-63 | 86-90 | XS |
| 8 | 4 | 36 | 8 | 84-88 | 64-68 | 91-95 | XS-S |
| 10 | 6 | 38 | 10 | 89-93 | 69-73 | 96-100 | S |
| 12 | 8 | 40 | 12 | 94-98 | 74-78 | 101-105 | M |
| 14 | 10 | 42 | 14 | 99-103 | 79-83 | 106-110 | L |
| 16 | 12 | 44 | 16 | 104-108 | 84-88 | 111-115 | L |
| 18 | 14 | 46 | 18 | 109-113 | 89-93 | 116-120 | XL |
| 20 | 16 | 48 | 20 | 114-118 | 94-98 | 121-125 | XL |
| 22 | 18 | 50 | 22 | 119-123 | 99-103 | 126-130 | 2XL |
| Height (cm) | Height (ft/in) | Size Category | Recommended Length | Notes |
|---|---|---|---|---|
| Under 155 | Under 5'1" | Petite | Knee-Midi | Standard lengths will be too long; seek petite sizing |
| 155-162 | 5'1" - 5'4" | Petite-Regular | Midi-Regular Floor | May need slight hemming on standard dresses |
| 162-170 | 5'4" - 5'7" | Standard/Regular | Floor-Maxi | Most standard sizing designed for this height |
| 170-178 | 5'7" - 5'10" | Tall-Regular | Floor-Maxi | Most dresses fit properly; some may need lengthening |
| Over 178 | Over 5'10" | Tall | Maxi/Custom | Standard lengths will be too short; seek tall sizing |
👗 Dress Style & Fit Guide
How Different Styles Affect Sizing:
- Fitted/Tailored: Runs true to size. Emphasizes curves. Choose size based on bust measurement if curvy; may need to size up if less curvy.
- Loose/Flowing: Often runs large. Can accommodate one size larger. Base size on waist or hip rather than bust.
- A-Line: Most flattering for various body types. Generally runs true to size. Choose based on waist measurement.
- Wrap/Tie: Adjustable fit with ties. Often runs true to size but adaptable. Choose mid-range size if between sizes.
- Empire Waist: Fits under bust, flows downward. Suited for various body types. Choose based on bust or natural waist.
- Maxi/Floor Length: Select based on height in addition to body size. May require hemming regardless of body size.
- Bodycon/Stretch: Hugs body closely. Often runs small due to stretch fabric. Consider sizing up one size for comfort.
- Cotton/Linen: No stretch, minimal give. Run true to size. Pre-shrink before measuring for custom sizing.
- Jersey/Knit: Stretchy and forgiving. May run small; consider sizing up. Very comfortable but shows body contours.
- Silk: Drapes beautifully. Usually runs true to size. Prone to wrinkles and requires careful care.
- Polyester Blend: Varies by blend ratio. Check individual brand sizing. Often run slightly small.
- Denim: Rigid fabric with minimal stretch. Tends to run small initially but stretches with wear. Size up 0.5-1 size.
❓ Frequently Asked Questions
How do I know if a dress will fit my height properly?
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Use our height-based calculator to determine ideal dress lengths. Standard sizing assumes 162-170 cm height. If shorter, look for petite lengths or expect to hem. If taller, seek tall lengths or custom tailoring. Always check dress length from shoulder seam to hem, not just the size number.
Should I size up if I'm between two dress sizes?
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Depends on dress style and your preference. For fitted styles, choose the size matching your bust measurement. For loose/flowing styles, choose based on hip or waist. If comfortable with tighter fits, choose smaller; if preferring looser, choose larger. When in doubt, order both sizes from retailers with free returns.
Why do I wear different sizes in different brands?
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Brand variations stem from different target markets, manufacturing locations, and design philosophies. Luxury brands often run smaller with precise fits. Fast fashion brands run loose with more fabric. European brands differ from USA brands. Plus-size and petite brands have different fit standards. Always check each brand's specific size chart and customer reviews about fit before purchasing.
How can I predict my dress size after weight loss?
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Use our weight loss estimator. On average, 5-7 kg weight loss reduces dress size by 1 size. However, this varies by individual based on body composition and where you lose weight. If you lose mostly from your midsection, waist size decreases more than bust. Use this as an estimate; actual results depend on personal factors. Recalculate measurements every 3-4 kg.
Is dress length the same as dress size?
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No, they're independent. Dress size refers to body fit (bust, waist, hip). Dress length refers to how long the dress is from shoulder to hem. Many retailers offer same size in different lengths (regular, petite, tall). Your size might be UK 12, but you may need petite length if under 155 cm or tall length if over 178 cm. Always specify both size and length when ordering.
Can stretch fabrics change how I should size?
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Yes, significantly. Stretch fabrics (jersey, lycra blends) are forgiving and may fit 1-2 sizes larger than rigid fabrics. If a dress is 95% polyester with 5% spandex, it has minimal stretch—size normally. If 80% polyester with 20% spandex, it stretches considerably—consider sizing down. Always check fabric content and read brand reviews specifically mentioning fit and stretch.
How often should I recalculate my dress size?
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Recalculate every 6-12 months as maintenance, or immediately after significant weight changes (5+ kg). Take measurements seasonally as body measurements fluctuate slightly year-round. If starting fitness programs or changing lifestyles, recalculate quarterly. Accurate sizing ensures proper fit and comfort; incorrect sizes lead to returns and dissatisfaction.
What's the most accurate measurement method for dress sizing?
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Measure on bare skin or wear fitted undergarments. Use a soft measuring tape. Have someone help you—measuring yourself often results in uneven measurements. Measure twice and record both measurements to verify consistency. Take measurements at the same time of day for consistency (morning before eating is ideal). Avoid measuring immediately after eating, exercising, or when bloated.
Should I choose dress size based on dress category or my actual measurements?
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Always base your size on your actual body measurements first. Then adjust by category: fitted dresses run truer to size; loose dresses accommodate larger sizes; stretch dresses run smaller. If a dress comes in one cut/style, size based on measurements. If multiple cuts available, adjust for that specific style. Your baseline size is always your measurements; category affects which baseline size you choose.