Key takeaways
- Most adults start with 16kg (35 lb) or 20kg (44 lb). Both are legitimate first bells; the choice depends on your current pressing strength and tolerance for high-rep work.
- If you can press a 20kg overhead with one arm, buy 20kg. If you’re unsure or new to pressing, start with 16kg.
- 16kg is not “too light.” High-rep swings (30–50 reps) and goblet squats (10–20 reps) at 16kg build serious work capacity and movement quality.
- One kettlebell works for all three movements. Adjust reps per movement: swings 30–50, goblet squats 8–20, presses 3–8 per arm.
- You will outgrow your first bell in 4–12 weeks. Plan to add a second bell or upgrade when single-movement reps become too easy.
The 16kg vs 20kg decision
Choose 16kg if:
– You cannot yet press 20kg overhead with one arm.
– You are new to kettlebell training or strength training in general.
– You want to prioritize movement quality and high-rep conditioning work.
– You plan to do 30–50 rep swings regularly (fatigue and form matter at high reps).
Choose 20kg if:
– You can already press 20kg overhead with one arm, even once.
– You have prior barbell or dumbbell pressing experience.
– You prefer lower-rep, higher-load work and can tolerate fewer swings per set.
– You want a single bell that challenges you across all three movements immediately.
The press is your anchor. If you cannot press it overhead cleanly, the bell is too heavy. Swings and goblet squats are more forgiving of load, but a press that breaks form or strains your shoulder is a sign to drop down.
Load selection by movement
Once you choose your first bell, here’s how each movement scales with that load:
| Movement | 16kg Rep Range | 20kg Rep Range | Notes |
|---|---|---|---|
| Swing | 30–50 reps | 20–40 reps | Higher reps build conditioning. Lower reps per set at 20kg is normal. |
| Goblet Squat | 8–20 reps | 8–15 reps | Chest-held load. Rep range is moderate; focus on depth and control. |
| Press (per arm) | 5–8 reps | 3–8 reps | Lowest rep range. Strength work. Stop well short of failure. |
These ranges assume you are training 2–4 times per week. If you train daily, expect lower reps per set and longer recovery between sessions.
Common sizing mistakes
Mistake 1: Buying too heavy because you’re strong at one movement.
You might deadlift 100kg, but that does not mean your first kettlebell should be 24kg. Kettlebell movements are ballistic (swings) or require single-arm stability (presses). Start conservative. You will progress fast.
Mistake 2: Confusing kettlebell weight with dumbbell weight.
A 20kg kettlebell feels heavier than a 20kg dumbbell because the weight is distributed differently (center of mass is further from your hand). Do not assume your dumbbell press max translates directly to kettlebell load.
Mistake 3: Assuming 16kg is only for women.
Gender has no bearing on whether 16kg is appropriate. Rep range and movement quality do. Many strong men train with 16kg for swings and conditioning. Load is a tool, not an identity.
Mistake 4: Buying a “compromise” size (like 18kg) to avoid choosing.
Non-standard sizes are harder to find, more expensive, and do not solve the decision. Stick to 16kg or 20kg. The progression is clear, and you will move up soon anyway.
Single kettlebell vs buying two
Start with one bell. Here’s why:
- Forces movement-specific rep adjustment. You cannot do double presses or double front squats yet. You learn to manage load across movements in a single session.
- Teaches load awareness. One bell makes it obvious when you are fatigued. Two bells let you hide poor form.
- Saves money. You will outgrow your first bell. Buying two now wastes money on a load you will abandon in 8 weeks.
- Simplifies decision-making. One variable (the bell) instead of two.
After 4–8 weeks, if you want to do double presses, double front squats, or double swings, add a second bell of the same weight. This is the natural progression.
Session design for your first size
Here is a simple framework for a single-kettlebell session:
Warm-up (5 min)
– 10 goblet squats (light, focus on depth)
– 10 swings (light, focus on hip hinge)
– 5 presses per arm (light, focus on shoulder position)
Main work (15–20 min)
Choose one:
– Swing-focused: 5 sets of 10 swings, rest 90 sec between sets. Add 2–3 goblet squats after each set if desired.
– Squat-focused: 5 sets of 8 goblet squats, rest 60 sec. Add 5 swings after each set if desired.
– Press-focused: 5 sets of 3–5 presses per arm, rest 2 min between sets. Add 10 swings or 5 goblet squats after each set for volume.
Finisher (optional, 5 min)
– 2–3 sets of 10 swings or 5 goblet squats at a steady pace.
Do this 3 times per week, with at least one rest day between sessions. Adjust reps up by 1–2 per week. When you can do 50 swings in one set or 15 goblet squats with zero fatigue, add a heavier bell or increase frequency.
When to progress to a heavier bell
You are ready to add weight when:
- Swings: You can do 50+ reps in one set with clean form and minimal fatigue.
- Goblet squats: You can do 15+ reps with no loss of depth or control.
- Presses: You can do 8+ reps per arm with zero strain, and you want more load.
Progression options:
1. Add a second bell of the same weight. Do double swings, double front squats, or double presses.
2. Buy a heavier bell (20kg if you started at 16kg; 24kg if you started at 20kg). Keep your first bell for high-rep conditioning.
3. Increase frequency or volume. More sessions per week or more sets per session, same load.
Most people do option 2 after 6–12 weeks. Your first bell becomes a conditioning tool; your second bell becomes your main training load.
Who this is for
This guide is for adults (18+) who:
– Are buying their first kettlebell.
– Plan to train swings, goblet squats, and presses as primary movements.
– Have no prior kettlebell experience or are returning after a long break.
– Train 2–4 times per week in a home gym or class setting.
– Are free of major shoulder, knee, or lower-back injuries.
Not for you if:
– You are recovering from a recent injury. Consult a physical therapist or coach before choosing load.
– You are training for a specific sport or competition. Your coach should recommend load.
– You have never lifted anything heavier than 5kg. Start with 12kg or consult a trainer.
– You are pregnant. Kettlebell training is safe in pregnancy, but load and rep range should be supervised by a prenatal specialist.
FAQ
Should I buy 16kg or 20kg if I’m unsure?
Start with 16kg. You can always add a second bell or upgrade later. A 16kg is heavy enough for high-rep swings and goblet squats, and lets you focus on form before load. If you can already press a 20kg overhead with one arm, go straight to 20kg.
Is 16kg too light for men?
No. 16kg is a legitimate training load for men, especially for high-rep swings (20–50 reps) and goblet squats (8–15 reps). Many strong men use 16kg for conditioning and volume work. Your gender does not override movement quality and rep range.
Can I use one kettlebell for swings, squats, and presses?
Yes. A single 16kg or 20kg works for all three movements in the same session. Swings tolerate higher reps (30–50), goblet squats sit in the middle (8–20), and presses are lower reps (3–8 per arm). One bell forces you to adjust volume per movement, which is a feature, not a bug.
What if I can already press 20kg overhead?
Buy 20kg as your first bell. You have the shoulder stability and pressing strength to train safely at that load. You’ll still benefit from high-rep swings and goblet squats at 20kg.
Should I buy two kettlebells instead of one?
Not necessary to start. One bell teaches you to manage load and volume across movements. After 4–8 weeks, if you want to do double presses or double front squats, add a second bell. Starting with one forces better movement quality and decision-making.
How long will 16kg or 20kg stay challenging?
4–12 weeks, depending on your starting strength and session frequency. Swings and goblet squats adapt quickly to load; presses take longer. You’ll know it’s time to progress when you can do 50+ swings in one set or 15+ goblet squats with zero fatigue. Add a heavier bell or increase reps strategically.
Is there a kettlebell weight between 16kg and 20kg?
Not in standard competition kettlebell sizes. The progression is 8kg, 12kg, 16kg, 20kg, 24kg. If you need something lighter than 16kg, consider 12kg. If 16kg feels too easy for presses, jump to 20kg.
Do I need to convert kg to pounds?
16kg = 35 lb; 20kg = 44 lb. Both are sold in kg worldwide. If you’re buying used or from a non-metric source, verify the actual weight. A kettlebell marked 35 lb is close to 16kg (actually 15.9kg).