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Pressure and Stress

Characteristic

atmosphere

Notes

Symbol

atm

Other Names

standard-atmosphere, atmos, A-n

Metric (SI) Equivalent

101.325 kilopascals

This equivalent and the others below are exact.

Other Metric (SI) Equivalents with More Basic Units

101.325 kilonewtons / meter2

1.01325×105 kilograms / meter second2

Metric (SI) Dimensions

length-1 × mass × time-2

Unit Group

atmosphere Group

Characteristic

atmosphere-technical

Notes

Symbol

at

Metric (SI) Equivalent

98.0665 kilopascals

This equivalent and the others below are exact.

Other Metric (SI) Equivalents with More Basic Units

98.0665 kilonewtons / meter2

98066.5 kilograms / meter second2

Metric (SI) Dimensions

length-1 × mass × time-2

Unit Group

atmosphere Group

Characteristic

bar

Notes

Metric (SI) Equivalent

100 kilopascals

This equivalent and the others below are exact.

Other Metric (SI) Equivalents with More Basic Units

100 kilonewtons / meter2

100000 kilograms / meter second2

Metric (SI) Dimensions

length-1 × mass × time-2

Characteristic

barad

Notes

Symbol

ba

Other Names

barye, barrie, bary, baryd, baryed, barie

Metric (SI) Equivalent

0.1 pascals

This equivalent and the others below are exact.

Other Metric (SI) Equivalents with More Basic Units

0.1 newtons / meter2

0.1 kilograms / meter second2

Metric (SI) Dimensions

length-1 × mass × time-2

Characteristic

foot-of-mercury-conventional

Notes

Other Name

ftHg-conventional

Metric (SI) Equivalent

40.63666 kilopascals

Other Metric (SI) Equivalents with More Basic Units

40.63666 kilonewtons / meter2

40636.66 kilograms / meter second2

Metric (SI) Dimensions

length-1 × mass × time-2

Unit Group

height-of-mercury Group

Characteristic

foot-of-water

( At 39.2 °F (4 °C) )

Notes

Other Name

ftH2O

Metric (SI) Equivalent

2.98898 kilopascals

Other Metric (SI) Equivalents with More Basic Units

2.98898 kilonewtons / meter2

2988.98 kilograms / meter second2

Metric (SI) Dimensions

length-1 × mass × time-2

Unit Group

height-of-water Group

Characteristic

foot-of-water-conventional

Notes

Other Name

ftH2O-conventional

Metric (SI) Equivalent

2.989067 kilopascals

Other Metric (SI) Equivalents with More Basic Units

2.989067 kilonewtons / meter2

2989.067 kilograms / meter second2

Metric (SI) Dimensions

length-1 × mass × time-2

Unit Group

height-of-water Group

Characteristic

inch-of-mercury

( At 0 °C )

Notes

Other Name

inHg

Metric (SI) Equivalent

3.38638 kilopascals

Other Metric (SI) Equivalents with More Basic Units

3.38638 kilonewtons / meter2

3386.38 kilograms / meter second2

Metric (SI) Dimensions

length-1 × mass × time-2

Unit Group

height-of-mercury Group

Characteristic

inch-of-mercury-60

( At 60 °F )

Notes

Other Name

inHg-60

Metric (SI) Equivalent

3.37685 kilopascals

Other Metric (SI) Equivalents with More Basic Units

3.37685 kilonewtons / meter2

3376.85 kilograms / meter second2

Metric (SI) Dimensions

length-1 × mass × time-2

Unit Group

height-of-mercury Group

Characteristic

inch-of-mercury-conventional

Notes

Other Name

inHg-conventional

Metric (SI) Equivalent

3.386389 kilopascals

Other Metric (SI) Equivalents with More Basic Units

3.386389 kilonewtons / meter2

3386.389 kilograms / meter second2

Metric (SI) Dimensions

length-1 × mass × time-2

Unit Group

height-of-mercury Group

Characteristic

inch-of-water

( At 39.2 °F (4 °C) )

Notes

Other Name

inH2O

Metric (SI) Equivalent

249.082 pascals

Other Metric (SI) Equivalents with More Basic Units

249.082 newtons / meter2

249.082 kilograms / meter second2

Metric (SI) Dimensions

length-1 × mass × time-2

Unit Group

height-of-water Group

Characteristic

inch-of-water-60

( At 60 °F )

Notes

Other Name

inH2O-60

Metric (SI) Equivalent

248.84 pascals

Other Metric (SI) Equivalents with More Basic Units

248.84 newtons / meter2

248.84 kilograms / meter second2

Metric (SI) Dimensions

length-1 × mass × time-2

Unit Group

height-of-water Group

Characteristic

inch-of-water-conventional

Notes

Other Names

inH2O-conventional, inch-of-water-UK

"UK" indicates that this unit is used in the United Kingdom.

Metric (SI) Equivalent

249.08891 pascals

Other Metric (SI) Equivalents with More Basic Units

249.08891 newtons / meter2

249.08891 kilograms / meter second2

Metric (SI) Dimensions

length-1 × mass × time-2

Unit Group

height-of-water Group

Characteristic

kip-per-square-inch

Notes

Symbol

ksi

Metric (SI) Equivalent

6.8947572932 megapascals

This equivalent and the others below are calculated from exact values.

Other Metric (SI) Equivalents with More Basic Units

6.8947572932 meganewtons / meter2

6.8947572932×106 kilograms / meter second2

Metric (SI) Dimensions

length-1 × mass × time-2

Description in Terms of Other Units and Constants

kip-force / inch2

Characteristic

meter-of-mercury

( At 0 °C )

Notes

Other Name

mHg

Metric (SI) Equivalent

133.322 kilopascals

Other Metric (SI) Equivalents with More Basic Units

133.322 kilonewtons / meter2

1.33322×105 kilograms / meter second2

Metric (SI) Dimensions

length-1 × mass × time-2

Unit Group

height-of-mercury Group

Characteristic

meter-of-mercury-conventional

Notes

Other Name

mHg-conventional

Metric (SI) Equivalent

133.3224 kilopascals

Other Metric (SI) Equivalents with More Basic Units

133.3224 kilonewtons / meter2

1.333224×105 kilograms / meter second2

Metric (SI) Dimensions

length-1 × mass × time-2

Unit Group

height-of-mercury Group

Characteristic

meter-of-water

( At 4 °C )

Notes

Other Name

mH2O

Metric (SI) Equivalent

9.80638 kilopascals

Other Metric (SI) Equivalents with More Basic Units

9.80638 kilonewtons / meter2

9806.38 kilograms / meter second2

Metric (SI) Dimensions

length-1 × mass × time-2

Unit Group

height-of-water Group

Characteristic

meter-of-water-conventional

Notes

Other Name

mH2O-conventional

Metric (SI) Equivalent

9.80665 kilopascals

This equivalent and the others below are exact.

Other Metric (SI) Equivalents with More Basic Units

9.80665 kilonewtons / meter2

9806.65 kilograms / meter second2

Metric (SI) Dimensions

length-1 × mass × time-2

Unit Group

height-of-water Group

Characteristic

pascal

Notes

Symbol

Pa

Metric (SI) Equivalent

pascal is a metric unit (in fact, it is a derived SI unit)

Other Metric (SI) Equivalents with More Basic Units

1 newton / meter2

1 kilogram / meter second2

Metric (SI) Dimensions

length-1 × mass × time-2

Characteristic

pieze

Notes

Symbol

pz

Metric (SI) Equivalent

1 kilopascal

This equivalent and the others below are exact.

Other Metric (SI) Equivalents with More Basic Units

1 kilonewton / meter2

1000 kilograms / meter second2

Metric (SI) Dimensions

length-1 × mass × time-2

Characteristic

pound-per-square-inch

Notes

Symbol

psi

Metric (SI) Equivalent

6.8947572932 kilopascals

This equivalent and the others below are calculated from exact values.

Other Metric (SI) Equivalents with More Basic Units

6.8947572932 kilonewtons / meter2

6894.7572932 kilograms / meter second2

Metric (SI) Dimensions

length-1 × mass × time-2

Description in Terms of Other Units and Constants

pound-force / inch2

Characteristic

torr

Notes

Other Name

tor

Metric (SI) Equivalent

133.32236842 pascals

Other Metric (SI) Equivalents with More Basic Units

133.32236842 newtons / meter2

133.32236842 kilograms / meter second2

Metric (SI) Dimensions

length-1 × mass × time-2