Best Calf Exercises Ranked by Effectiveness (2026 Guide)

In a 2023 MRI study of untrained adults, 12 weeks of seated calf raises grew the gastrocnemius — the muscle that gives your calf its shape — by less than 2%. The same training done standing grew it by 9–12%. Plenty of lifters still treat the seated machine as half of their calf training. This guide ranks seven calf exercises on growth research, loading, and practicality, and turns the top picks into a two-session week.

Quick Answer

The best calf exercise is a straight-knee calf raise you can load heavily and lower into a deep stretch: the standing calf raise on a machine or in a Smith machine, or the leg press calf raise if you don't have one. The seated calf raise works as a second exercise, not a replacement. Do 8–12 hard sets a week over 2–3 sessions, with slow reps and a pause at the bottom.

How These Are Ranked

Three criteria, weighted equally:

1. Growth evidence — training studies that measured calf growth directly with MRI or ultrasound (Kinoshita 2023, Kassiano 2023, Nunes 2020, Larsen 2025), plus EMG studies of how knee angle shifts the work between the calf muscles (Signorile 2002, Hébert-Losier 2012)
2. Stretch and loading — whether you can load it heavily and lower into a deep stretch at the bottom
3. Practicality — how common the equipment is and how easy it is to add weight over time

Your calf is two muscles that share the Achilles tendon. The gastrocnemius, the two-headed muscle that gives the calf its shape, crosses both the knee and the ankle, so it does the most work when your knee is straight. The soleus lies underneath, crosses only the ankle, and makes up about half of the calf's muscle volume (Albracht 2008). Bend your knee and the gastrocnemius goes slack, leaving more of the work to the soleus. That's why this list leans on straight-knee raises: they train both muscles at once.

The Top 7 Calf Exercises

1. Standing Calf Raise (Machine or Smith)

Stand on a standing calf machine — or on a sturdy block in a Smith machine — with the balls of your feet on the edge and your knees straight but not locked. Lower your heels as far as they'll go, pause, then rise as high as you can.

Why it ranks #1: It's the calf exercise with the strongest growth evidence. In Kinoshita and colleagues' 2023 study, 14 untrained adults trained one leg on a standing calf machine and the other on a seated one for 12 weeks. The standing leg's gastrocnemius grew 9–12%; the seated leg's grew less than 2%. The soleus grew about the same either way (2.1% vs 2.9%), so the standing leg came out ahead for the calf as a whole: 5.6% vs 2.1%. It's also the easiest calf exercise to load heavily, in small jumps.

Trade-offs: The shoulder pads load your spine, and as the weight climbs it gets tempting to shorten the range. If your heels stop dropping below the platform, the weight is too heavy.

Programming: 3–4 sets of 10–15 reps. Take about 2 seconds down, pause for a second or two in the stretch, then rise and squeeze briefly at the top. See the calf raise page.

2. Leg Press Calf Raise

Sit in a leg press with your knees straight but not locked and only the balls of your feet on the bottom edge of the platform. Let the sled push your toes toward you for a deep stretch, then press through the balls of your feet.

Why it ranks here: It's a near tie with #1 — the same straight-knee position and the same heavy loading, with nothing on your shoulders or spine. It's also the exercise behind two of the growth studies in this guide: in Kassiano (2023) and Nunes (2020), every calf raise was done on a horizontal leg press. It ranks second only because it hasn't been tested head to head against the seated raise.

Trade-offs: Keep the balls of your feet firmly on the platform and move slowly; a foot sliding off the edge under a heavy load is the main thing to avoid.

Programming: 3–4 sets of 10–20 reps. See the leg press calf raise page; a dedicated calf press machine works the same way.

3. Single-Leg Calf Raise

Stand on one foot on a step, hold a dumbbell in the hand on the same side, and hold a rail or wall with the other. Lower your heel below the step, pause, and rise as high as you can.

Why it ranks here: One calf lifts your whole body weight, which makes this a genuinely loaded exercise without a machine, and a dumbbell takes it further. Three of the four growth studies in this guide trained each leg on its own (to compare methods within the same person), with real machine loads, and the calves still grew, so single-leg work is a legitimate main exercise as long as you keep adding load. Training each side on its own also exposes a weaker leg.

Trade-offs: Balance and grip can end the set before your calf does, so hold on to something solid. It also takes twice as long as training both legs together.

Programming: 3 sets of 10–15 reps per leg. Once you can do 15 slow reps with your body weight, hold a dumbbell. See the single-leg calf raise page.

4. Seated Calf Raise

Sit at a seated calf machine with the pad across your lower thighs and your knees bent to about 90°. Lower your heels into a full stretch, then rise.

Why it ranks here: Bending the knee slackens the gastrocnemius, so the soleus does more of the work. In Signorile's 2002 EMG study, the soleus was less active with the leg straight than with the knee bent, and the medial gastrocnemius was most active with the leg straight. The effect is smaller than its reputation, though: at 45° of knee bend, Hébert-Losier and colleagues (2012) measured only a 4–5% shift in muscle activity, which they said might not be enough to matter for muscle-specific benefits, and in the 2023 MRI study, with the knee at 90°, the soleus grew about as much from standing training as from seated training.

Trade-offs: It barely grows the gastrocnemius — in the 2023 study, the seated leg's gastrocnemius grew less than 2% in 12 weeks, not a significant change.

Programming: 2–3 sets of 12–20 reps, after a straight-knee raise rather than instead of one. See the seated calf raise page.

5. Donkey Calf Raise

Bend at the hips until your torso is roughly parallel to the floor, hands on a support, balls of your feet on a block. A donkey calf machine — or, old-school style, a training partner sitting on your hips — provides the load.

Why it ranks here: It's a straight-knee raise like #1, with the load on your hips instead of your shoulders. None of the growth studies in this guide tested it, and its reputation for a "deeper stretch" doesn't add up anatomically: the gastrocnemius crosses the knee and the ankle, not the hip, so bending over doesn't lengthen it. In a small 2016 study by Andrade and colleagues, flexing the hips to 90° didn't change gastrocnemius tension at a given ankle angle, and it reduced how far the ankle could bend. The stretch comes from your ankle, and it's no deeper than in a standing raise.

Trade-offs: Donkey calf machines are rare, and a partner on your back is hard to progress — you're stuck at their body weight.

Programming: 3 sets of 10–15 reps if your gym has the machine. Without one, the standing or leg press version does the same job.

6. Standing Barbell Calf Raise

Set a barbell across your upper back as you would for a squat, and stand with the balls of your feet on a weight plate or low block. Lower your heels, pause, then rise.

Why it ranks here: It needs only a barbell, so it works in any gym, and it keeps your knees straight. But balance, not your calves, usually ends the set: the heavier the bar and the higher the block, the more you wobble. That caps how much load you can use.

Trade-offs: It puts a heavy bar on your spine to train a small muscle. If your gym has a Smith machine, use it instead — that's #1.

Programming: 3 sets of 10–15 reps. Start flat on the floor and add a plate under the balls of your feet once you're steady. See the standing barbell calf raise page.

7. Bodyweight Calf Raise

Stand with both feet on a step, hold a rail, and lower and raise your heels.

Why it ranks here: It's the right place to learn the movement and a good warm-up. But your two legs share your body weight, so it soon takes 30 or more reps to get anywhere near failure. When you can do 25 slow reps with a pause at the bottom, move on to the single-leg version.

Programming: 2–3 sets of 15–25 reps. See the calf raise page; the single-leg calf raise is the next step.

What to Skip

• Bouncy reps at the top of the range — in Kassiano's 2023 study, calf raises done only in the top half of the range thickened the medial gastrocnemius by 3.4%, against 15.2% for reps in the bottom, stretched half. If your heels never drop below the platform, you're skipping the part of the rep that grows calves most.
• Seated raises as your only calf exercise — in the 2023 MRI study they barely grew the gastrocnemius, the muscle that gives your calf its shape.
• Sets that never get hard — high reps aren't the problem: sets of 20–25 reps grew calves in a 2020 study. Easy reps are. If 30 reps feel easy, add load or switch to single-leg raises.
• Toe-angle tricks as a fix for small calves — turning your toes in or out shifts some growth between the two heads of the gastrocnemius (Nunes 2020), but it won't rescue a calf that isn't growing. Load, stretch, and weekly sets do that.

How to Build a Week

The studies in this guide grew calves with 8–12 hard sets a week over two or three sessions. Here's a two-session version:

• Session A: standing calf raise 4×10–12
• Session B: leg press calf raise 3×12–15 + seated calf raise 3×15–20

That's 10 weekly sets, mostly straight-knee, with the seated raise as a soleus extra. Add them at the end of any two training days; calves don't need a day of their own.

On every rep, take about 2 seconds down, pause for 1–2 seconds in the stretch, then rise. When you can't finish another full rep, a few partial reps in the bottom half are a good way to end the set: in a 2025 study of trained lifters, full reps finished this way thickened the medial gastrocnemius by 6.7% in 8 weeks, and bottom-half partials alone did slightly better (9.5%), though the difference was uncertain.

No machines? Do single-leg calf raises off a step, 3 sets per leg, three times a week. For more on weekly volume, see how many sets per week build muscle; for the three classic machines side by side, see standing vs seated vs donkey calf raises.

The Bottom Line

Build your calf training around a straight-knee raise you can load heavily and lower into a deep stretch: the standing calf raise, or the leg press calf raise if you don't have a standing machine. Treat the seated raise as an extra, not half the job. Do 8–12 hard sets a week over two or three sessions, keep every rep slow at the bottom, and add weight as you get stronger. Calves do grow slowly, but in every training study above, straight-knee raises grew them measurably within 8–12 weeks.