What size kettlebell should a beginner start with?

Men: 16kg (35 lbs) for ballistic movements (swings, cleans), 12kg (26 lbs) for presses and Turkish get-ups. Women: 8-12kg (18-26 lbs) for ballistics, 6-8kg (13-18 lbs) for grinds. These are starting points — prioritize form over weight.

Cast iron or competition kettlebell — which is better?

Cast iron kettlebells change size with weight (heavier = bigger). Competition kettlebells are all the same dimensions regardless of weight. Competition bells are better for technique consistency and sport training. Cast iron bells are cheaper and fine for general fitness.

How many kettlebells do I need?

Start with one. A single 16kg (men) or 8kg (women) kettlebell enables hundreds of exercises. After 3-6 months, add a heavier bell for swings and a lighter one for pressing. Three kettlebells (light/medium/heavy) cover virtually all training needs.

Kettlebell Buying Guide: Cast Iron vs Competition vs...

Kettlebell Buying Guide: Cast Iron vs Competition vs Adjustable

By The Smarter Play Editorial Team · Updated February 2026

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Handle diameter, base flatness, weight tolerance — the differences that affect every swing.

By TSP Research · Feb 2026 · 11 min readUpdated Feb 2026Sources cited

Two grey kettlebells on gym floor with brick wall background, perfect for fitnes

Three Kettlebell Types

Cast iron: size scales with weight (heavier = bigger). Standard for most people. Competition (steel): same dimensions regardless of weight — important for consistent form at different loads. Adjustable: one bell, multiple weights — space-efficient but compromised feel.