Cardio
Articles, tests and recommendations in our Cardio section.
Recent articles
How Many Steps Is 5 km? Step Count by Stride Length
5 km is usually about 6,250 to 7,700 steps depending on stride length. See the table, formula, walking time and calorie estimates.
How Long Does It Take to Walk 10 km? Time, Steps and Calories
Walking 10 km usually takes about 1 hour 40 minutes to 2 hours 30 minutes. See 10 km walking time by pace, steps, calories and preparation tips.
Best Recovery Tools for Endurance Athletes (2026)
Three recovery tools earn their slot in our rotation: the Theragun PRO, the Hyperice Normatec 3, and AG1 as a daily nutrient floor. Here’s the honest stack for $1,500.
Walking at 3.4 mph burns 23% more fat than faster speeds according to research
After personally testing over 50 different walking protocols with my clients, I discovered something that challenges everything we thought we knew about fat burning. The magic number isn’t…
How Many Miles Is a 5K? Distance, Average Times and Pace Guide
A 5K is 3.1 miles or 5 kilometers. See average 5K times for walking, jogging and running, plus beginner pace tips and related distance guides.
How Many Calories Do You Burn Walking 1 Hour? Weight and Pace Guide
Walking for 1 hour usually burns about 150 to 525 calories depending on body weight, pace, terrain and effort. Use the table to estimate your range.
How Long Does It Take to Walk 4 km? Average Time, Steps and Pace
Walking 4 km usually takes 40 to 60 minutes. Use the pace table to estimate your 4 km walking time, steps, calories and effort level.
How Long Does It Take to Walk 20 km? Time, Pace and Calories
Walking 20 km usually takes 3 hours 20 minutes to 5 hours depending on pace, terrain and breaks. See pace, steps, calories and preparation tips.
How Long Does It Take to Walk 3 km? Average Time and Pace Guide
Walking 3 km usually takes 30 to 45 minutes. See average 3 km walking times by pace, steps, calories and how it compares with 5K and 6 km.
How Long Does It Take to Walk 6km? Time, Steps and Pace
Walking 6km usually takes 60 to 90 minutes. See the pace table, step estimate, calories burned and practical tips to make a 6km walk easier and safer.