Time to walk 21 km

Walking Time Calculator / km
How long does it take to walk
km

How long to walk 21 km?

Answer

Walking 21 km takes about
4 hours and 7 minutes

≈ 4.12 hours ≈ 247 minutes

Average walking pace 5.1 km/h (≈ 3.17 mph) · non‑stop, flat ground

21 km at other paces
3 km/h7 hslow4 km/h5 h 15 minleisurely5.1 km/h4 h 7 minused here6 km/h3 h 30 minbrisk7 km/h3 hvery brisk

21 km ÷ 5.1 km/h ≈ 4.12 h ≈ 4 h 7 min

See Also

Recalculate with different values ↑

Time to walk distance

DistanceTime in hoursTime
13.5 km2.652 hours and 39 minutes
14 km2.752 hours and 45 minutes
14.5 km2.842 hours and 51 minutes
15 km2.942 hours and 56 minutes
15.5 km3.043 hours and 2 minutes
16 km3.143 hours and 8 minutes
16.5 km3.243 hours and 14 minutes
17 km3.333 hours and 20 minutes
17.5 km3.433 hours and 26 minutes
18 km3.533 hours and 32 minutes
18.5 km3.633 hours and 38 minutes
19 km3.733 hours and 44 minutes
19.5 km3.823 hours and 49 minutes
20 km3.923 hours and 55 minutes
20.5 km4.024 hours and 1 minute
21 km4.124 hours and 7 minutes
22 km4.314 hours and 19 minutes
22.5 km4.414 hours and 25 minutes
23 km4.514 hours and 31 minutes
23.5 km4.614 hours and 36 minutes
24 km4.714 hours and 42 minutes
25 km4.94 hours and 54 minutes
25.5 km55 hours
26 km5.15 hours and 6 minutes
27 km5.295 hours and 18 minutes
27.5 km5.395 hours and 24 minutes
28 km5.495 hours and 29 minutes
29 km5.695 hours and 41 minutes
30 km5.885 hours and 53 minutes
31 km6.086 hours and 5 minutes

FAQ

How long to walk 21 km?

Walking 21 km takes about 4 hours and 7 minutes

What walking pace does this calculator use?

An average pace of 5.1 km/h (≈ 3.17 mph), about 1.42 m/s, between the usual 1.31 m/s and the medium 1.47 m/s walking speeds of a 2020 review of 35 studies (Murtagh et al., Sports Medicine). The paces under the answer show 3 to 7 km/h.

Does it include breaks or hills?

No — it is non-stop walking on flat ground; breaks, hills and crowds add time.

See Also