120 Knots to Miles Per Hour

120 kn ≈ 138.09 mph

Calculation: mph = 120 kn × 1.15078 ≈ 138.09 mph

Knot to Mile Per Hour Converter

Choose the type of measurement to convert
Select the source unit to convert from
Select the target unit to convert to
Enter a numeric value or fraction to convert
Sig. Figures:

How fast is 120 kn?

138.1 mph (222.2 km/h) is about the cruising speed of a bullet train (Shinkansen) at around 200 mph.

What does 120 kn look like?

Illustration of a bullet train
138.1 mph (222.2 km/h) is about the cruising speed of a bullet train (Shinkansen) at around 200 mph.

120 kn on the mile per hour scale

kn050100.0150.0200.0mph050100.0150.0200.0

120.0 kn = 138.1 mph

How to Convert Knot to Mile Per Hour

1 knot = 1.15078 miles per hour

Mile Per Hour = Knot × 1.15078

Example: 120 kn × 1.15078 = 138.09 mph

Reverse Conversion

To convert miles per hour back to knots:

  • Remember, 1 mile per hour equals 0.868976 knots.
  • To convert 138.09 mph to kn, multiply 138.09 x 0.868976, resulting in 120 kn.

120 kn is also equal to:

Frequently Asked Questions

How much is 120 knots in miles per hour?

120 knots equals 138.09 miles per hour. This is calculated by multiplying 120 by the conversion factor 1.15078.

What does 120 knots look like in miles per hour?

120 knots (138.09 miles per hour) is a commercial aircraft cruising speed.

How do you calculate 120 knots to miles per hour?

Multiply 120 by the conversion factor 1.15078. The calculation is 120 × 1.15078 = 138.09 miles per hour. This factor is defined by international measurement standards.

Share This Calculation

120 knots = 138.094 miles per hour
120 knots = 138.094 miles per hour — conversion chart

Nearby Conversions

20 knots23.02 miles per hour 30 knots34.52 miles per hour 40 knots46.03 miles per hour 50 knots57.54 miles per hour 60 knots69.05 miles per hour 70 knots80.55 miles per hour 80 knots92.06 miles per hour 90 knots103.6 miles per hour 100 knots115.1 miles per hour 110 knots126.6 miles per hour 130 knots149.6 miles per hour 140 knots161.1 miles per hour 150 knots172.6 miles per hour 160 knots184.1 miles per hour 170 knots195.6 miles per hour 180 knots207.1 miles per hour 190 knots218.6 miles per hour 200 knots230.2 miles per hour 210 knots241.7 miles per hour 220 knots253.2 miles per hour

For general conversions between knots and miles per hour, see the knots to miles per hour converter.

Also convert Knots to:

Conversion factors verified against NIST, BIPM, ISO 80000-3 Derived from SI base units (m/s, BIPM). Last reviewed: March 2026
Adilson Fernandes By Adilson Fernandes
Tiago Fernandes Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.