How Long Is a 5K? 5K vs 10K vs Half and Full Marathon

A 5K is 5 kilometres, or about 3.1 miles. The "K" stands for kilometres, so a 10K is 10 km. It's the most common first race distance, and the one we run at Ticgetz's One Earth One Heart events.

How long is a 5K?

Five kilometres is about 12.5 laps of a standard 400-metre running track. For most people it takes somewhere between 6,000 and 7,500 steps, depending on stride length.

How long does a 5K take?

It depends on your fitness and whether you walk any of it. As a rough guide:

• Brisk walking: around 45 to 60 minutes
• Run-walk, beginner: around 35 to 45 minutes
• Steady running: around 25 to 35 minutes

These are typical ranges rather than targets. In a first race, finishing is the achievement.

5K vs 10K

A 10K is twice the distance, 10 km or 6.2 miles. Most runners move up to a 10K after a few 5Ks. Training for a 10K usually takes longer, around 8 to 10 weeks for a beginner who can already run a 5K.

Half marathon vs marathon

• Half marathon: 21.0975 km (13.1 miles)
• Marathon: 42.195 km (26.2 miles)

The marathon distance has been the standard since 1921. Strictly speaking, only a 42.195 km race is a marathon, though "marathon" is often used loosely for any organised run.

Which distance should you start with?

Start with a 5K. It takes four to six weeks to prepare for, it's kind to your body, and it gives you the race-day experience: the start line nerves, the crowd and the finish. Our 5K training plan for beginners walks you through it week by week.

Find a 5K near you

In Bengaluru, the One Earth One Heart 5K runs on Sunday 13 December 2026 in RR Nagar, starting at 6:00 AM. Entry includes a BIB, timing, medal, certificate, T-shirt and breakfast. Our first edition was in Mysuru in April 2026, starting from the Mysuru Palace entrance. See how it went.