Men’s trousers and jeans size guide

We understand the importance of a great fit. Use our handy men’s jeans and trousers size guide to find your perfect pair online and in store.

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How to measure yourself for trousers and jeans

To find the correct size for you, take your body measurements by following the guide below:

A tape measure is required.

Waist

Measure around the natural waistline, just below your navel.

Hips

With your feet together, measure around the widest part of your hip.

Inside the leg/inseam

Measure from the top of the inside leg (at the crotch) to the floor.

Thighs

Measure the circumference of your thigh at the widest part of your upper leg. Tip: be sure to measure the entire width, not just from the inseam to the outer seam.

Trouser measurement guide showing waist and hip width, and leg length points with measurement lines.

Conversion and measurement chart

Finding the perfect jeans or trousers size is key to achieving a comfortable rotation of options you’ll want to style with the rest of your wardrobe. A well-fitting pair not only enhances your look but also ensures all-day ease of movement. However, inconsistent waist and inseam measurements across brands, varying fits (slim, regular, relaxed), and differences in rise (low, mid, high) can make it tricky to instantly find the right size. The guide below simplifies the process by showing you how to measure your waist, hips, inseam, and rise, to find the ideal fit for your body.

Disclaimer: the following chart is for reference only. The fit of the garment may vary depending on the style, cut and fabric.

Tips for accurate measurements

  • Use a flexible measuring tape: A soft measuring tape will help you get precise measurements without distorting the fabric.

  • Measure on a flat surface: Lay your garment on a flat, even surface to ensure accurate dimensions.

  • Keep the fabric smooth: Ensure there are no wrinkles or folds when measuring to avoid miscalculations.

  • Wear the right clothing: If you’re measuring your body for jeans or trousers, wear fitted undergarments and no layers for the most accurate results.

  • Double check your measurements: Take each measurement twice to ensure accuracy and avoid errors. 

  • Use a mirror or help: For the most accurate results, measure in front of a mirror or ask someone to assist.

Understanding the different jeans and trouser fits

It's essential to determine the trouser and jeans fits that best suit your body and personal style.

Slim fit

Tapers through the thigh and leg to create a sleek silhouette. Ideal for lean or athletic builds but it may feel restrictive for some.

Regular fit

A classic fit with a straight leg that offers a balance of comfort and style. Suitable for most body types. 

Relaxed fit

Designed with a loose fit around the waist, hips and thighs. Provides comfort for laid-back styles.

Skinny fit

A tight, fitted style that flows from the waist to the ankle. Often crafted with stretch fabric for flexibility.

Tapered fit

This style begins with a wide fit at the thighs that gradually narrows toward the ankle, blending comfort with a streamlined shape.

Wide leg fit

A wide fit from the waist to the hem, creating a relaxed yet statement look with a retro-inspired silhouette.

Bootcut fit

Slightly flared from below the knee for a classic style that pairs best with boots.

Cropped fit

A slim shape that ends above the ankle, creating a modern, casual look that works well with trainers or loafers. 

Carpenter fit

Functional, loose-fit trousers often featuring utility pockets and loops. Ideal for casual or streetwear-inspired looks.

High-waisted fit

The waistband sits above the natural waistline, these jeans elongate the legs and provide a flattering look that can be dressed up or down.

Low-rise fit

The waistband sits below the natural waistline, creating a casual, yet edgy vibe.

FAQs

What if I'm between sizes?

If you're between sizes, you can try these strategies to find the right fit:

  • Try both sizes: Try on both sizes and test them by sitting, bending, and walking to determine which feels most comfortable and suits your style.

  • Size up: Size up for a longer and more comfortable fit.

  • Size down: Size down if you prefer a tighter fit.

  • Consider fabric stretch: For jeans or trousers with stretch fabrics, sizing down might be a better option as the material will loosen with wear.

  • Look for adjustable features: Some trousers or jeans offer adjustable waistbands or drawstrings, making them a great option for those who are in between sizes.

How should men’s jeans fit in the waist and thighs?

  • The waistband should sit comfortably around your natural waist without needing a belt to stay up (unless styled intentionally!) and lay flat against the body with no gapping. For your thighs, there should be enough room to accommodate your leg shape without feeling restrictive, even when sitting or squatting.