To convert Jeff's height from centimeters to feet, we can use the ratio given:
1 foot = 30.48 centimeters.
To find out how many feet tall Jeff is, we divide his height in centimeters by the number of centimeters in a foot:
\[ \text{Height in feet} = \frac{\text{Height in centimeters}}{\text{Centimeters per foot}} = \frac{183 \text{ cm}}{30.48 \text{ cm/foot}}. \]
Calculating this:
\[ \text{Height in feet} = \frac{183}{30.48} \approx 6.0039 \text{ feet}. \]
Rounding to the nearest whole number, Jeff is approximately 6 feet tall.