So you finally learned what rems are and next thing you know you read a reference to Sieverts. Is this some plot to keep you uninformed?? Do you feel a case of conversion aversion coming on? Don’t fear — IEER’s Conversion Table can help you. In this case, you would simply scroll down to the word “Sievert” to find that it equals 1/100th of a rem. (You can use the “find” feature in your Web browser to find the terms more quickly.) This table also converts pounds to grams, yards to meters and picocuries to becquerels, and lots more! Happy converting!
| If you have | and you want | multiply by |
|---|---|---|
| air, dry (m3) | grams | 1185 |
| americium-241 (curies) | americium-241 (grams) | 0.286 |
| americium-241 (grams) | americium-241 (curies) | 3.49 |
| Angstrom | centimeters | 10-8 |
| barrels (55 gal.) | cubic feet | 7.35243 |
| barrels (55 gal.) | cubic meters | 0.20820 |
| barrels (US liquid) | gallons (US) | 31.5 |
| becquerels | curies | 27 x 10-12 |
| becquerels | picocuries | about 27 |
| Btu | joules | 1054.35 |
| calories | joules | 4.18400 |
| Celsius | centigrade | 1 |
| Celsius | Fahrenheit | multiply by 1.8 and add 32 |
| Celsius | Kelvin | add 273.16 |
| centigrade | Celsius | 1 |
| centimeters | inches | 0.39370 |
| centimeters | meters | 0.01 |
| centimeters | microns | 10 000 |
| centimeters | yards | 0.01094 |
| curies | becquerels | 37 x 109 |
| curies | picocuries | 1012 |
| ergs | joules | 10-7 |
| dpm | curies | 4.5 x 10-13 |
| gallons | liters | 3.79 |
| grains | grams | 0.06480 |
| grams | ounces | 0.03527 |
| Grays | rads | 100 |
| hours | years | 0.0001141 |
| inches | centimeters | 2.54 |
| inches | feet | 0.083 |
| inches | miles | 1.58×10-5 |
| in. mercury | atmospheres | 0.03342 |
| joules | Btu | 9.48451×10-4 |
| joules | ergs | 107 |
| joules | tons TNT | 2.38095×10-10 |
| joules | Watt-hours | 0.00027 |
| joules | Watt-seconds | 1 |
| joules/second | Watts | 1 |
| Kelvin | centigrade | subtract 273.16 |
| kilograms | pounds | 2.20462 |
| kilometers | miles | 0.62137 |
| liters | cubic centimeters | 1 000 |
| liters | cubic feet | 0.03532 |
| liters | cubic meters | 0.001 |
| liters | gallons (US) | 0.26418 |
| liters | quarts | 1.05672 |
| meters | centimeters | 100 |
| meters | feet | 3.28084 |
| meters | yards | 1.09361 |
| microCi/gram | picoCi/gram | 106 |
| microCi/km2 |
dpm/100 cm2 |
0.022 |
| microCi/m2 |
dpm/100 cm2 |
2.2 x 104 |
| micrograms/m3 (weight in air) |
ppm (volume) | 0.0241/molecular weight |
| microns | Angstrom | 10 000 |
| microns | centimeters | 0.0001 |
| microrad/hour | millirad/year | 8.76 |
| miles | centimeters | 160 934.4 |
| miles | kilometers | 1.609344 |
| milliliters | fluid ounces | 0.0338 |
| millimeters | centimeters | 0.1 |
| nanoCi./m2 |
dpm/100m2 |
22.22 |
| nanograms/gram | ppb (parts/bil) | 1 |
| nanograms/liter | ppb | 0.001 |
| ounces (US fluid) | cubic centimeters | 29.57373 |
| ounces (US fluid) | milliliters | 29.57373 |
| percent | ppm | 10 000 |
| picocuries | becquerels | 0.037 |
| picocuries | curies | 10-12 |
| picoCi./gram | dpm/gram | 2.22 |
| plutonium-238 (curies) | plutonium-238 (grams) | 0.054 |
| plutonium-238 (grams) | plutonium-238 (curies) | 18.6 |
| plutonium-239 (curies) | plutonium-239 (grams) | 15 |
| plutonium-239 (grams) | plutonium-239 (curies) | 0.067 |
| plutonium-240 (curies) | plutonium-240 (grams) | 4.11 |
| plutonium-240 (grams) | plutonium-240 (curies) | 0.24 |
| plutonium-241 (curies) | plutonium-241 (grams) | 0.0083 |
| plutonium-241 (grams) | plutonium-241 (curies) | 121.2 |
| pounds | grams | 453.59237 |
| pounds | kilograms | 0.45359 |
| power | energy | time |
| ppb | nanograms/gram | 1 |
| ppb | nanograms/liter | 1 000 |
| ppb | ppm | 0.001 |
| ppm | grains/gallon | 0.0584 |
| ppm | percent | 0.0001 |
| ppm | ppb | 1 000 |
| quarts | liters | 0.94633 |
| rads | Grays | 0.01 |
| rads | rems | RBE factor |
| rems | Sieverts | 0.01 |
| seconds | years | 3.171 x 10-8 |
| Sieverts | rems | 100 |
| square centimeters | square feet | 0.00108 |
| square feet | square centimeters | 929.0304 |
| square feet | square meters | 0.09290 |
| square meters | square feet | 10.76391 |
| square miles | acres | 640 |
| therms | Btu | 100 000 |
| tons TNT | Btu | 3 983 500 |
| tons TNT | joules | 4.2 x 109 |
| tons (metric) | pounds | 2204.6226 |
| U-234 (curies) | U-234 (grams) | 154.4 |
| U-234 (grams) | U-234 (curies) | 6.48 x 10-3 |
| U-238 (curies) | U-238 (grams) | 2.81 x 106 |
| U-238 (grams) | U-238 (curies) | 3.56 x 10-7 |
| Watt-hours | Btu | 3.41443 |
| Watt-hours | joules | 3 600 |
| Watts | Btu/hour | 3.41443 |
| Watts | joules/second | 1 |
| Watts-seconds | joules | 1 |
| yards | centimeters | 91.44 |
| yards | meters | 0.9144 |
| years | hours | 8760 |
| years | seconds | 31.54 x 106 |