- Converting 4.92in to mm

For quick conversions you can use google or some other unit converter. Otherwise, if you need to show work or if you need practice, use dimensional analysis. In other words, multiply your number 4.92 inches times the converting factors needed. You can go step by step, converting from inches to centimeters and then centimeters to millimeters.

the converting factors are as follows:

1 inch = 2.54 cm, or 2.54 cm/1 inch = 1, or 1 inch/2.54 cm = 1

1 cm = 100 mm, or 1 cm/100mm = 1, or 100mm/1cm = 1

you can use conversion factors to convert either way.

you can use conversion factors to convert either way.

Line up your numbers and units in your dimensional analysis to make sure you dont mix up the units.

ie:

**4.92**inches x 2.54 cm =

**12.4**96 cm x 100 mm =

**124**9.6 mm =

**125**0

**mm**

1 inch 1 cm

note that I bolded the significant figures. Remember, conversion factors are

*exact;*in this case, you start off with three sig figs so your final converted units should also be 3 sig figs.*You should round your answer only at the end of you calculations to prevent error propagation.*
## Comments

^{3 }mm.^{3}mm as you said