ASHRAE-Standard-55 - Page 009

Extracted Content

Table 5-1 Metabolic Rates for Typical Tasks

Activity

Resting

Metabolic Rate

met W/m [2] Btu/h·ft [2]

Sleeping 0.7 40 13

Reclining 0.8 45 15

Seated, quiet 1.0 60 18

Standing, relaxed 1.2 70 22

Walking (on level surface)

0.9 m/s, 3.2 km/h, 2.0 mph 2.0 115 37

1.2 m/s, 4.3 km/h, 2.7 mph 2.6 150 48

1.8 m/s, 6.8 km/h, 4.2 mph 3.8 220 70

Office Activities

Reading, seated 1.0 55 18

Writing 1.0 60 18

Typing 1.1 65 20

Filing, seated 1.2 70 22

Filing, standing 1.4 80 26

Walking about 1.7 100 31

Lifting/packing 2.1 120 39

Driving/Flying

Automobile 1.0 to 2.0 60 to 115 18 to 37

Aircraft, routine 1.2 70 22

Aircraft, instrument landing 1.8 105 33

Aircraft, combat 2.4 140 44

Heavy vehicle 3.2 185 59

Miscellaneous Occupational Activities

Cooking 1.6 to 2.0 95 to 115 29 to 37

House cleaning 2.0 to 3.4 115 to 200 37 to 63

Seated, heavy limb movement 2.2 130 41

Machine work

Sawing (table saw) 1.8 105 33

Light (electrical industry) 2.0 to 2.4 115 to 140 37 to 44

Heavy 4.0 235 74

Handling 50 kg (100 lb) bags 4.0 235 74

Pick and shovel work 4.0 to 4.8 235 to 280 74 to 88

Miscellaneous Leisure Activities

Dancing, social 2.4 to 4.4 140 to 255 44 to 81

Calisthenics/exercise 3.0 to 4.0 175 to 235 55 to 74

Tennis, single 3.6 to 4.0 210 to 270 66 to 74

Basketball 5.0 to 7.6 290 to 440 90 to 140

Wrestling, competitive 7.0 to 8.7 410 to 505 130 to 160

ANSI/ASHRAE Standard 55-2023 7