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Mass

Characteristic

bag-cement

Notes

Metric (SI) Equivalent

42.63768278 kilograms

This equivalent is calculated from exact values.

Metric (SI) Dimensions

mass

Description in Terms of Other Units and Constants

94 pounds-mass

Characteristic

barrel-cement

Notes

Metric (SI) Equivalent

170.55073112 kilograms

This equivalent is calculated from exact values.

Metric (SI) Dimensions

mass

Description in Terms of Other Units and Constants

376 pounds-mass

Characteristic

carat

( Used for gemstone measurements )

Notes

Symbol

ct

Other Name

metric-carat

Metric (SI) Equivalent

0.2 grams

This equivalent and the one below are exact.

Another Metric (SI) Equivalent with More Basic Units

2×10-4 kilograms

Metric (SI) Dimensions

mass

Characteristic

dram-mass

Notes

Symbol

drm

Other Names

dr, dr-avdp, dram, dram-avoirdupois, drachm, drachm-avoirdupois

Metric (SI) Equivalent

1.7718451953 grams

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

Another Metric (SI) Equivalent with More Basic Units

0.0017718451953 kilograms

Metric (SI) Dimensions

mass

Description in Terms of Other Units and Constants

pound-mass / 256

Unit Group

dram-mass Group

Characteristic

dram-mass-troy

Notes

Other Names

drm-troy, dr-troy, dr-ap, dram-troy, dram-apothecaries, drachm-troy, drachm-apothecaries

Metric (SI) Equivalent

3.8879346 grams

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

Another Metric (SI) Equivalent with More Basic Units

0.0038879346 kilograms

Metric (SI) Dimensions

mass

Description in Terms of Other Units and Constants

pound-mass-troy / 96

Unit Group

dram-mass Group

Characteristic

electron-mass

Notes

Symbol

me

Use "m-e" for our conversion calculators.

Other Names

natural-unit-of-mass, atomic-unit-of-mass

Metric (SI) Equivalent

9.10938291×10-31 kilograms

Standard Uncertainty

± 4×10-38 kilograms

Metric (SI) Dimensions

mass

Characteristic

electron-molar-mass

Notes

Metric (SI) Equivalent

5.4857990946×10-7 kilograms

Standard Uncertainty

± 2.2×10-16 kilograms

Metric (SI) Dimensions

mass

Characteristic

gamma-mass

Notes

Other Name

gamma

Metric (SI) Equivalent

1 microgram

This equivalent and the one below are exact.

Another Metric (SI) Equivalent with More Basic Units

1×10-9 kilograms

Metric (SI) Dimensions

mass

Characteristic

grain-mass

( Apothecaries, avoirdupois, and troy unit )

Notes

Symbol

grm

Metric (SI) Equivalent

6.479891 centigrams

This equivalent and the one below are exact.

Another Metric (SI) Equivalent with More Basic Units

6.479891×10-5 kilograms

Metric (SI) Dimensions

mass

Characteristic

gram

Notes

Symbol

g

Other Names

gm, gramme

Metric (SI) Equivalent

gram is a metric unit

Another Metric (SI) Equivalent with More Basic Units

0.001 kilograms

This equivalent is exact.

Metric (SI) Dimensions

mass

Characteristic

hundredweight

( Used in the United States )

Notes

Symbol

cwt

Other Names

hundredweight-CA, cental, cental-CA, hundredweight-short, short-hundredweight, hundredweight-net, net-hundredweight

"CA" indicates that this unit is used in Canada.

Metric (SI) Equivalent

45.359237 kilograms

This equivalent is calculated from exact values.

Metric (SI) Dimensions

mass

Description in Terms of Other Units and Constants

100 pounds-mass

Unit Group

hundredweight Group

Characteristic

hundredweight-long

Notes

Other Names

cwt-lg, hundredweight-UK, long-hundredweight, hundredweight-gross, gross-hundredweight

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

Metric (SI) Equivalent

50.80234544 kilograms

This equivalent is calculated from exact values.

Metric (SI) Dimensions

mass

Description in Terms of Other Units and Constants

112 pounds-mass

Unit Group

hundredweight Group

Characteristic

kilogram

Notes

Symbol

kg

Other Name

kilogramme

Metric (SI) Equivalent

kilogram is a metric unit (in fact, it is a base SI unit)

Metric (SI) Dimensions

mass

Characteristic

kip-mass

Notes

Other Names

kip, kilopound

Metric (SI) Equivalent

0.45359237 tons-mass-metric

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

Another Metric (SI) Equivalent with More Basic Units

453.59237 kilograms

Metric (SI) Dimensions

mass

Description in Terms of Other Units and Constants

1000 pounds-mass

Characteristic

metric-slug

Notes

Metric (SI) Equivalent

9.80665 kilograms

This equivalent is calculated from exact values.

Metric (SI) Dimensions

mass

Description in Terms of Other Units and Constants

kilogram-force / (meter / second2)

Unit Group

slug Group

Characteristic

muon-mass

Notes

Symbol

mμ

Use "m-mu" for our conversion calculators.

Metric (SI) Equivalent

1.883531475×10-28 kilograms

Standard Uncertainty

± 9.6×10-36 kilograms

Metric (SI) Dimensions

mass

Characteristic

neutron-mass

Notes

Symbol

mn

Use "m-n" for our conversion calculators.

Metric (SI) Equivalent

1.674927351×10-27 kilograms

Standard Uncertainty

± 7.4×10-35 kilograms

Metric (SI) Dimensions

mass

Characteristic

neutron-molar-mass

Notes

Metric (SI) Equivalent

0.001008664916 kilograms

Standard Uncertainty

± 4.3×10-13 kilograms

Metric (SI) Dimensions

mass

Characteristic

ounce-mass

Notes

Symbol

ozm

Other Names

oz, oz-avdp, ounce, ounce-avoirdupois

Metric (SI) Equivalent

28.349523125 grams

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

Another Metric (SI) Equivalent with More Basic Units

0.028349523125 kilograms

Metric (SI) Dimensions

mass

Description in Terms of Other Units and Constants

pound-mass / 16

Unit Group

ounce-mass Group

Characteristic

ounce-mass-troy

Notes

Other Names

ozm-troy, oz-troy, oz-ap, ounce-troy, ounce-apothecaries

Metric (SI) Equivalent

31.1034768 grams

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

Another Metric (SI) Equivalent with More Basic Units

0.0311034768 kilograms

Metric (SI) Dimensions

mass

Description in Terms of Other Units and Constants

pound-mass-troy / 12

Unit Group

ounce-mass Group

Characteristic

pennyweight

( Troy unit )

Notes

Symbol

dwt

Metric (SI) Equivalent

1.55517384 grams

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

Another Metric (SI) Equivalent with More Basic Units

0.00155517384 kilograms

Metric (SI) Dimensions

mass

Description in Terms of Other Units and Constants

24 grains-mass

Characteristic

Planck-mass

Notes

Metric (SI) Equivalent

2.17651×10-8 kilograms

Standard Uncertainty

± 1.3×10-12 kilograms

Metric (SI) Dimensions

mass

Characteristic

point-mass

( Used for gemstone measurements )

Notes

Other Name

point

Metric (SI) Equivalent

2 milligrams

This equivalent and the one below are exact.

Another Metric (SI) Equivalent with More Basic Units

2×10-6 kilograms

Metric (SI) Dimensions

mass

Characteristic

pound-mass

Notes

Symbol

lbm

Other Names

lb, lb-avdp, pound, pound-avoirdupois

Metric (SI) Equivalent

0.45359237 kilograms

This equivalent is calculated from exact values.

Metric (SI) Dimensions

mass

Description in Terms of Other Units and Constants

7000 grains-mass

Unit Group

pound-mass Group

Characteristic

pound-mass-troy

Notes

Other Names

lbm-troy, lb-troy, lb-ap, pound-troy, pound-apothecaries

Metric (SI) Equivalent

0.3732417216 kilograms

This equivalent is calculated from exact values.

Metric (SI) Dimensions

mass

Description in Terms of Other Units and Constants

5760 grains-mass

Unit Group

pound-mass Group

Characteristic

proton-mass

Notes

Symbol

mp

Use "m-p" for our conversion calculators.

Metric (SI) Equivalent

1.672621777×10-27 kilograms

Standard Uncertainty

± 7.4×10-35 kilograms

Metric (SI) Dimensions

mass

Characteristic

proton-molar-mass

Notes

Metric (SI) Equivalent

0.0010072764668 kilograms

Standard Uncertainty

± 9×10-14 kilograms

Metric (SI) Dimensions

mass

Characteristic

quarter-mass

( Used in the United States )

Notes

Symbol

qrm

Other Names

quarter, qr

Metric (SI) Equivalent

11.33980925 kilograms

This equivalent is calculated from exact values.

Metric (SI) Dimensions

mass

Description in Terms of Other Units and Constants

25 pounds-mass

Unit Group

quarter Group

Characteristic

quarter-mass-long

Notes

Other Names

qrm-lg, quarter-long, long-quarter

Metric (SI) Equivalent

254.0117272 kilograms

This equivalent is calculated from exact values.

Metric (SI) Dimensions

mass

Description in Terms of Other Units and Constants

560 pounds-mass

Unit Group

quarter Group

Characteristic

quarter-mass-short

( Used in the United States )

Notes

Other Names

qrm-sh, quarter-short, short-quarter

Metric (SI) Equivalent

226.796185 kilograms

This equivalent is calculated from exact values.

Metric (SI) Dimensions

mass

Description in Terms of Other Units and Constants

500 pounds-mass

Unit Group

quarter Group

Characteristic

quarter-mass-UK

( Used in the United Kingdom )

Notes

Other Names

qrm-UK, quarter-UK, qr-UK

Metric (SI) Equivalent

12.70058636 kilograms

This equivalent is calculated from exact values.

Metric (SI) Dimensions

mass

Description in Terms of Other Units and Constants

28 pounds-mass

Unit Group

quarter Group

Characteristic

quintal

Notes

Symbol

q

Metric (SI) Equivalent

100 kilograms

This equivalent is exact.

Metric (SI) Dimensions

mass

Characteristic

scruple-mass

( Apothecaries unit )

Notes

Symbol

scrm

Other Names

scr, scruple

Metric (SI) Equivalent

1.2959782 grams

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

Another Metric (SI) Equivalent with More Basic Units

0.0012959782 kilograms

Metric (SI) Dimensions

mass

Description in Terms of Other Units and Constants

20 grains-mass

Characteristic

slug

Notes

Other Names

gee-pound, g-pound

Metric (SI) Equivalent

14.593902937 kilograms

This equivalent is calculated from exact values.

Metric (SI) Dimensions

mass

Description in Terms of Other Units and Constants

pound-force / (foot / second2)

Unit Group

slug Group

Characteristic

stone

Notes

Symbol

st

Metric (SI) Equivalent

6.35029318 kilograms

This equivalent is calculated from exact values.

Metric (SI) Dimensions

mass

Description in Terms of Other Units and Constants

14 pounds-mass

Characteristic

tau-mass

Notes

Symbol

mτ

Use "m-tau" for our conversion calculators.

Metric (SI) Equivalent

3.16747×10-27 kilograms

Standard Uncertainty

± 2.9×10-31 kilograms

Metric (SI) Dimensions

mass

Characteristic

ton-assay

( Used in the United States )

Notes

Symbol

AT

Other Names

assay-ton, ton-short-assay, assay-ton-short

Metric (SI) Equivalent

0.029166666667 kilograms

Metric (SI) Dimensions

mass

Unit Group

ton-mass Group

Characteristic

ton-long-assay

Notes

Other Names

AT-lg, assay-ton-long, ton-UK-assay, assay-ton-UK

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

Metric (SI) Equivalent

0.032666666667 kilograms

Metric (SI) Dimensions

mass

Unit Group

ton-mass Group

Characteristic

ton-mass

( Used in the United States )

Notes

Symbol

tonm

Other Names

ton-CA, ton, ton-short, short-ton, ton-net, net-ton

"CA" indicates that this unit is used in Canada.

Metric (SI) Equivalent

0.90718474 tons-mass-metric

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

Another Metric (SI) Equivalent with More Basic Units

907.18474 kilograms

Metric (SI) Dimensions

mass

Description in Terms of Other Units and Constants

2000 pounds-mass

Unit Group

ton-mass Group

Characteristic

ton-mass-long

Notes

Other Names

tonm-lg, ton-UK, ton-long, long-ton, ton-gross, gross-ton

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

Metric (SI) Equivalent

1.0160469088 tons-mass-metric

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

Another Metric (SI) Equivalent with More Basic Units

1016.0469088 kilograms

Metric (SI) Dimensions

mass

Description in Terms of Other Units and Constants

2240 pounds-mass

Unit Group

ton-mass Group

Characteristic

ton-mass-metric

Notes

Other Names

tonm-metric, t, tonne, ton-metric, metric-ton

Metric (SI) Equivalent

ton-mass-metric is a metric unit

Another Metric (SI) Equivalent with More Basic Units

1000 kilograms

This equivalent is exact.

Metric (SI) Dimensions

mass

Unit Group

ton-mass Group

Characteristic

unified-atomic-mass-unit

Notes

Symbol

u

Other Names

atomic-mass-unit, atomic-mass-constant, dalton, Da, m-u, amu

Metric (SI) Equivalent

1.660538921×10-27 kilograms

Standard Uncertainty

± 7.3×10-35 kilograms

Metric (SI) Dimensions

mass