What muscle makes your arms look thicker?

Author: Evangeline Barton I  |  Last update: Sunday, October 19, 2025

If you are looking to build some sizable arms, the triceps are your ticket to mass. A 2007 study found the triceps accounts for about 55 percent of the muscle mass in the arm while the biceps accounts for about 30 percent.

What muscles make arms look bigger?

Your first priority should be to train the brachialis. This is because the brachialis is responsible for some of the mass on the outer arm, and anatomically pushes up the biceps -- which creates the illusion of wider, thicker arms.

What muscle makes your arms wider?

Triceps Training

If you want your arms to become wider, the first step is to increase the size of your triceps. The upper arm itself is made up of 3 major muscles: 50% Triceps, 30% Bicep and 20% Brachialis. Since the triceps make up 2/3 of the upper arm, this will be your main focus for getting wider arms.

What makes arms thick?

Extra skin and fat in the arms can be caused by obesity, significant weight loss, or genetics. Individuals born female are at a greater risk of carrying excess weight in their arms. Hormonal imbalances and a stagnant lifestyle can also cause arm fat.

What muscles make you look thicker?

Traps, shoulders, upper back, forearms, neck, and glutes make you look huge, especially in clothes.

Ranking The Worst & Best Exercises for Muscle Building (ft. Dr Mike Israetel)

What muscles look most attractive?

What eventually won as the most attractive muscles on a guy were the arms. Other muscles of interest in order, from most attractive to least, were the chest, back, shoulders, glutes, legs, abs, and, finally, calves, which came in dead last.

Do shoulders make arms look bigger?

Proportional shoulders can make our arms look even bigger by creating visual consistency all the way to our chests. In contrast, underdeveloped shoulders can make our biceps and triceps appear underdeveloped.

How do I thicken my arms?

Our Top 5 Exercises to Build Big Arms:
  1. Biceps Curl. The most commonly performed exercises to build big arms are the biceps curl. ...
  2. Triceps Extension with Plate. ...
  3. Biceps Curl to Arnold Press. ...
  4. Landmine Single Arm Shoulder Press. ...
  5. Kettlebell Hang Power Snatch.

What causes chubby arms?

These include lack of exercise, age, genetics, and poor diet. Additionally, some medical conditions, such as hypothyroidism, can cause the body to store excess fat in the upper arms.

How do I get fatter arms?

To bulk up your arms and make them appear bigger, work out your arm muscles. Lifting weights and doing push-ups are great options. To support your muscle growth and put on more weight, increase the amount of calories you eat, and choose heartier foods, like starches, healthy fats, and lots of protein.

How to make arms look fuller?

How to Get Big Arms
  1. Bicep curls.
  2. Triceps extensions.
  3. Wrist curls.
  4. Bicep curls to shoulder press.
  5. Chin-ups.
  6. Push-ups.

Can skinny arms get big?

Getting rid of skinny arms entails training the muscles directly 3-4 times per week. The key is to train both biceps and triceps and use heavy, moderate, and light weights throughout the week to increase strength, size, and vascularity. It's also important to train the arms using a full range of motion with good form.

Are hammer curls better than bicep curls?

So, which is better? It really depends on your goals. If you're looking to build bigger biceps, then you should focus on bicep curls a bit more than hammer curls. However, if you're just looking to tone your arms and don't really care about building bigger biceps, then either exercise will work just fine.

What muscles make you broader?

Creating a broader frame is a combination of muscles on your back and shoulders, she said, like delts, traps, and lats as well as your chest muscles.

What is the easiest muscle to build?

What Are the Easiest Muscles To Build? Generally speaking, your body's largest muscle groups, such as those in your back, chest, and legs, are likely to respond most quickly to strength training.

How to get big arms fast?

How To Get Bigger Biceps: The 6 Best Exercises
  1. Concentration Curls (short head)
  2. Hammer Curls (long head)
  3. EZ Bar Curls (long / short head depending on grip)
  4. Preacher Curl (short head)
  5. Single Arm High Cable Bicep Curl (short head)
  6. Chin Ups (long / short head depending on grip)

Why am I skinny but my arms are fat?

The ratio of body fat to lean muscle mass. A skinny person can have very small muscles, but have a decent amount of fat. They still look skinny, but their body fat percentage compared to their lean body mass is high. This is what causes flabby arm fat, but still being skinny.

What hormone causes arm fat?

Imbalances in the hormones oestrogen and testosterone, two important hormones involved in fat storage, can cause fat to be stored in the arms. Age can also be a factor as metabolism tends to slow down with age, which can lead to weight gain. A slower metabolism also makes arm fat harder to get rid of.

What does stage 1 lipedema look like?

Lipedema stages include: Stage 1: Your skin looks normal, but you can feel something like pebbles under your skin. You can have pain and bruising at this stage. Stage 2: Your skin surface is uneven and may have dimpling that looks like quilted stitching, a walnut shell or cottage cheese.

How long does it take to get thicker arms?

Typically, it takes around 6-8 weeks for you to start noticing changes in the appearance of your arms. At around the 12 week mark, this is typically when you can expect to see more significant changes, especially if you didn't already have a large amount of muscle mass in the area!

Is off shoulder good for chubby arms?

Tip 2: Flattering cuts for chubby upper arms

Off-the-shoulder necklines can also be very beneficial: They can cover your upper arms, while still showing a little skin. With a jacket or blazer, you can emphasise your shoulders and balance your proportions.

What muscle grows the fastest?

Muscle Groups That Grow Fast
  • Leg Muscles (Quadriceps and Hamstrings):
  • Back Muscles (Latissimus Dorsi and Trapezius):
  • Chest Muscles (Pectoralis Major):
  • Shoulder Muscles (Deltoids):
  • Arm Muscles (Biceps and Triceps):

What muscle makes you look the biggest?

Training your delts and traps will add much needed width across the top. Especially if you're a taller guy, width is going to be a major standout feature that dictates whether you're deemed “skinny” or “big.” Putting beef on your shoulders and neck is a good place to start.

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