Bikini Size Calculator
Find your perfect bikini fit with our easy-to-use calculator.
How It Works:
This calculator provides size recommendations for bikini tops and bottoms based on your measurements. For the most accurate results, use a soft measuring tape and measure directly against your skin.
Top Size Measurements
Measure around the fullest part of your bust.
Measure directly under your bust where your bra band sits.
This helps confirm our calculation, but isn't required.
Bottom Size Measurements
Measure around your natural waistline.
Measure around the fullest part of your hips.
Your Recommended Bikini Size
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Bikini Sizing Guide
How to Take Your Measurements
For the most accurate results, use a soft measuring tape and measure directly against your skin:
For Bikini Tops:
- Bust: Measure around the fullest part of your bust while standing straight with arms at sides.
- Underbust: Measure directly underneath your bust where your bra band would sit. The tape should be snug but comfortable.
For Bikini Bottoms:
- Waist: Measure around your natural waistline, which is typically the narrowest part of your torso.
- Hips: Measure around the fullest part of your hips and buttocks while standing with feet together.
Understanding Bikini Top Sizing
Bikini tops are usually sized in one of three ways:
- Bra Sizing: Similar to bras (e.g., 34B, 36C)
- Letter Sizing: XS, S, M, L, XL
- Numerical Sizing: 4, 6, 8, 10, 12, etc.
Our calculator provides conversions between these different sizing systems.
Understanding Bikini Bottom Sizing
Bikini bottoms typically come in:
- Letter Sizing: XS, S, M, L, XL
- Numerical Sizing: 4, 6, 8, 10, 12, etc.
Bottom sizes are generally determined by your waist and hip measurements.
Coverage Types:
- Full Coverage: More modest, provides maximum rear coverage
- Moderate Coverage: Standard coverage, balances modesty and style
- Minimal Coverage: Brazilian, cheeky, or thong styles with less coverage
International Bikini Size Charts
| US/UK | EU | Australia | Letter Size |
|---|---|---|---|
| 4 | 32 | 6 | XS |
| 6 | 34 | 8 | S |
| 8 | 36 | 10 | S/M |
| 10 | 38 | 12 | M |
| 12 | 40 | 14 | M/L |
| 14 | 42 | 16 | L |
| 16 | 44 | 18 | XL |
| 18 | 46 | 20 | XXL |
Tips for Finding the Perfect Bikini Fit
- Different brands may have slightly different sizing. Always check the specific brand's size chart when available.
- If you're between sizes, consider sizing up for comfort or down for a snugger fit.
- Consider the amount of support you need when selecting a bikini top style.
- For athletic activities, choose a more secure fit with additional support features.
- Remember that some fabrics stretch when wet, so a slightly snug fit when dry might be ideal.