The micrometers might be listed as a whole number, or as a decimal. For example, you might need to convert 7. 8 micrometers to nanometers.
For example, 7. 8×1,000=7,800{\displaystyle 7. 8\times 1,000=7,800}. So, 7. 8micrometers=7,800nanometers{\displaystyle 7. 8,{\text{micrometers}}=7,800,{\text{nanometers}}}.
For example, you might need to convert 14,500 nanometers to micrometers.
For example, 14,500÷1,000=14. 5{\displaystyle 14,500\div 1,000=14. 5}. So, 14,500nanometers=14. 5micrometers{\displaystyle 14,500,{\text{nanometers}}=14. 5,{\text{micrometers}}}.
Since you are converting a larger unit (micrometers) into a smaller unit (nanometers), you should multiply. There are 1,000 nanometers in 1 micrometer. 18×1,000=18,000{\displaystyle 18\times 1,000=18,000} 18micrometers=18,000nanometers{\displaystyle 18,{\text{micrometers}}=18,000,{\text{nanometers}}}.
Since you are converting a smaller unit (nanometers) into a larger unit (micrometer), you should divide. There is 1 micrometer per 1,000 nanometers. 300÷1,000=0. 3{\displaystyle 300\div 1,000=0. 3} 300nanometers=0. 3micrometers{\displaystyle 300,{\text{nanometers}}=0. 3,{\text{micrometers}}}.
There are 1,000 nanometers in 1 micrometer. Micrometers are larger than nanometers. This means a smaller number of micrometers will equal a larger number of nanometers. 3. 8×1,000=3,800{\displaystyle 3. 8\times 1,000=3,800} 3. 8micrometers=3,800nanometers{\displaystyle 3. 8,{\text{micrometers}}=3,800,{\text{nanometers}}}
