Leg Day Workout for Mass: A Simple Plan for Bigger Legs

A leg day workout for mass needs one heavy squat pattern, one hip hinge, one single-leg or machine press, and direct work for the hamstrings and calves. Do it once or twice a week with about 10-16 hard sets for quads and 8-12 for hamstrings, push it a little harder each week, and your legs will grow.

Legs are big muscles, so they need heavy loads, real effort and enough recovery. Here's how to choose exercises, set up your week and get through leg day without dreading it.

The muscles you're training

The quads on the front of the thigh straighten the knee and make up most of the leg's visible size. The hamstrings on the back bend the knee and help extend the hip. The glutes extend the hip, the adductors on the inner thigh help in squats and lunges, and the calves work at the ankle.

A good leg day hits each of these with the right movement. Squats and leg presses train quads and glutes. Romanian deadlifts and leg curls train hamstrings in two different ways (one at the hip, one at the knee), so you want both.

The best leg exercises for size

Build your session from one or two choices per line:

• Squat pattern: back squat, front squat, hack squat or Smith squat. 3-4 sets of 5-10.
• Hip hinge: Romanian deadlift or stiff-leg deadlift. 3 sets of 6-10.
• Leg press: 3 sets of 10-15, with feet low on the platform for more quads.
• Single-leg work: Bulgarian split squat or walking lunge. 2-3 sets of 8-12 per leg.
• Leg curl (seated or lying): 3 sets of 10-15. Seated curls stretch the hamstrings more.
• Leg extension: 2-3 sets of 12-15 for extra quad work without loading your back.

Squat depth and technique

Go as deep as you can while keeping your back neutral and your heels down. For most people that's hip crease at or below the knee. Deeper squats train the quads and glutes through a longer range, and research generally favors that for growth over shallow reps with heavier weight.

Brace your core before each rep, let the knees travel forward over the toes (that's normal), and keep the bar over the middle of your foot. If your lower back rounds at the bottom, stop a little higher or try a front squat or hack squat, which keep the torso more upright.

The Romanian deadlift needs the same care. Start standing with the bar, soften the knees, and push your hips back while the bar slides down your thighs. Stop when you feel a strong stretch in the hamstrings, usually somewhere around mid-shin, with your back still flat. Then drive the hips forward to stand up. If the bar drifts away from your legs or your back starts to round, the weight is too heavy or you're going too low.

Film a set from the side every few weeks. It's the fastest way to catch depth that's slowly getting shorter as the weight goes up.

Sets, reps and progression

Leg muscles can take a lot of work, but they also create a lot of fatigue. For most lifters, 10-16 weekly sets for quads and 8-12 for hamstrings is a strong target. Keep heavy compound sets in the 5-10 range and machine work at 10-15 or more. Finish sets one to two reps from failure, and closer on machines where it's safe.

Add weight slowly. A squat that rises from 135 lb (60 kg) to 225 lb (100 kg) over one to two years of training is normal for a beginner and comes with much bigger legs. The progressive overload guide shows how to add weight or reps in steps you can actually keep up with.

Two sample leg sessions

If you train legs once a week, use Session A. If you train them twice, alternate A and B with at least two days between them. Rest two to three minutes on squats and hinges, 90 seconds on machines.

• Session A (squat focus): back squat 4x5-8, Romanian deadlift 3x8-10, leg press 3x10-15, seated leg curl 3x10-15, standing calf raise 3x10-15.
• Session B (single-leg focus): hack squat 3x8-12, Bulgarian split squat 3x8-12 per leg, lying leg curl 3x12-15, leg extension 2x15, seated calf raise 3x15-20.

Make leg day easier to show up for

Warm up with 5 minutes on a bike, then do two or three lighter sets of your first exercise. Eat a proper meal one to three hours before, because heavy legs on an empty stomach is miserable. Sleep matters most the night before. Keep the session to about 60-75 minutes. If you regularly run out of energy before your last two exercises, cut a set from each lift instead of skipping the end, and move hamstring curls earlier now and then so they get your best effort.

Don't skip calves and glutes because you're tired at the end. Calves are stubborn, and how to grow calves explains why they need their own focus. If you want more glute size, our list of the best glute exercises slots right into Session B. Curious how fuller legs would look on you? The leg editor shows it on your own photo.

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