What Is the Dress Size Calculator?
The dress size calculator finds your dress size from your bust, waist and hip measurements and converts it to US, UK, EU/French, Italian, Australian and Japanese sizes. Unlike a simple size chart, it takes the style of dress into account, because a bodycon dress, an A-line dress and a wrap dress fit different parts of your body.
It is especially useful for online shopping, for buying from brands in another country and for figures whose bust, waist and hips fall into different sizes. If you are not sure of your figure type, start with the Female Body Shape Calculator.
How Does the Dress Size Calculator Work?
Each of your three measurements is matched to the smallest US misses size that fits it, allowing about half an inch of ease. The calculator then chooses the size that matters for your dress style:
- Fitted / bodycon: the largest of bust, waist and hips.
- Fit and flare / A-line: the larger of bust and waist (the skirt is loose).
- Shift / straight: the larger of bust and hips (the waist is loose).
- Stretch / wrap: the middle of your three sizes.
That size is converted to other systems, and your height adds petite or tall length guidance.
How to Use the Dress Size Calculator?
- Choose inches or centimetres.
- Enter your bust, wearing the bra you plan to wear with the dress.
- Enter your natural waist and your hips.
- Optionally enter your height for petite or tall advice.
- Choose the dress style you are buying.
- Press Find my dress size to see your size, conversions, chart and fit tips.
Dress Size Calculator Inputs
| Input | Required | Notes |
|---|---|---|
| Bust | Yes | Fullest part |
| Waist | Yes | Narrowest point |
| Hips | Yes | Fullest part of the seat |
| Height | Optional | Petite under 5′4″, tall over 5′8″ |
| Dress style | Yes | Decides which measurements matter |
How to Measure Bust, Waist and Hips for a Dress
Wear thin clothing and the bra you will wear with the dress. Keep the tape level and snug.
- Bust: fullest point, tape across the shoulder blades.
- Waist: narrowest point, usually just above the navel.
- Hips: widest part of the seat, feet together.
Dress Size Formula
Size per measurement = smallest chart size where chart value ≥ your measurement − 0.5 in
| US | UK / AU | EU / FR | IT | JP | Bust (in) | Waist (in) | Hips (in) |
|---|---|---|---|---|---|---|---|
| 0 | 4 | 32 | 36 | 5 | 32 | 24.5 | 35 |
| 2 | 6 | 34 | 38 | 7 | 33 | 25.5 | 36 |
| 4 | 8 | 36 | 40 | 9 | 34 | 26.5 | 37 |
| 6 | 10 | 38 | 42 | 11 | 35 | 27.5 | 38 |
| 8 | 12 | 40 | 44 | 13 | 36 | 28.5 | 39 |
| 10 | 14 | 42 | 46 | 15 | 37 | 29.5 | 40 |
| 12 | 16 | 44 | 48 | 17 | 38.5 | 31 | 41.5 |
| 14 | 18 | 46 | 50 | 19 | 40 | 32.5 | 43 |
| 16 | 20 | 48 | 52 | 21 | 41.5 | 34 | 44.5 |
| 18 | 22 | 50 | 54 | 23 | 43.5 | 36 | 46.5 |
| 20 | 24 | 52 | 56 | 25 | 45.5 | 38 | 48.5 |
Dress Size Calculation Example
A woman has a 36 in bust, 28 in waist and 39 in hips and is buying a fitted dress.
- Bust 36 fits US 8.
- Waist 28 fits US 8.
- Hips 39 fits US 8.
All three agree, so her size is US 8 / UK 12 / EU 40. If her hips were 41 in, they would need US 12; a fitted dress would then be US 12, while a fit-and-flare dress would stay US 8.
Understanding Your Dress Size Result
Recommended Size
Your size in the main headline, with the letter size (XS–3XL) as a badge.
International Conversions
US, UK, EU/FR, IT, AU and JP equivalents. Always check the brand’s own chart, as conversions vary slightly.
Size by Measurement Chart
Bars show which size each measurement fits. Highlighted bars are the ones that decide the size for your chosen style.
Fit Tips
Advice on sizing up or down, fabric stretch and tailoring when your measurements span several sizes.
Factors That Affect Your Result
- Dress style and fabric stretch.
- The bra worn when measuring the bust.
- Brand-specific and vanity sizing.
- Body shape: curvy figures often span two or three sizes.
Benefits of Using the Dress Size Calculator
- Matches size to the dress style, not just a chart row.
- Six international size systems at once.
- Explains why your size changes between styles.
- Reduces returns when shopping online.
Limitations of the Dress Size Calculator
There is no single global sizing standard, and brands interpret sizes differently. The chart represents typical US misses sizing. Plus sizes (16W and above), petite and tall ranges use different patterns, so check brand charts for those.
Tips for Getting Accurate Results
- Measure in the underwear you will wear with the dress.
- Choose the correct dress style before calculating.
- Between sizes, size up in woven fabrics and down in stretch knits.
- Compare your measurements with the brand’s chart before buying.
Dress Size Calculator vs. Other Methods
| Method | Uses all 3 measurements | Considers style | International |
|---|---|---|---|
| This calculator | Yes | Yes | 6 systems |
| Brand size chart | Yes | No | Usually 1–2 |
| Guessing from usual size | No | No | No |
| Trying on in store | Yes | Yes | One brand |
Who Should Use the Dress Size Calculator?
Online shoppers, people buying from international brands, anyone between sizes, and personal shoppers or stylists sizing clients.
Frequently Asked Questions
What is a dress size calculator?
It is a tool that finds your dress size from your bust, waist and hip measurements and converts it to international sizes.
How does the dress size calculator work?
It matches each measurement to a US size, then picks the size that matters for your dress style and converts it.
How accurate is the dress size calculator?
It is accurate against standard US misses sizing. Brand sizing varies, so compare with the brand chart.
What measurements do I need?
Bust, waist and hips. Height is optional for petite or tall advice.
Can my result change over time?
Yes. Any change in your bust, waist or hips can change your size, especially for fitted styles.
Why can different calculators give different results?
They use different size charts, and many ignore the dress style or use only one measurement.
Is the dress size calculator free?
Yes, it is free and private.
Can I use the dress size calculator on mobile?
Yes, it works on any phone, ideal while shopping.
Dress Size Calculator Conclusion
The right dress size depends on your measurements and the style you are buying. Measure carefully, choose your style, and use the international conversions and fit tips to order with confidence.