Konverter kecepatan

Konversi mph ke km/h, km/h ke mph, m/s, dan knot dengan faktor tepat, serta ft/s, Mach di permukaan laut, dan kecepatan cahaya.

Diperbarui 29 September 2026Contoh terverifikasi: 5

Nilai hasil konversi

km/h

Angka penting: 12; Terdekat, jika berjarak sama menjauhi nol

Konversi: 60 mph = 96.56064 km/h
Faktor konversi: 1.609344
Ketepatan: Eksak

60 mph tepat sama dengan 96.56064 km/h. Satu satuan mil per jam tepat sama dengan 1.609344 km/h.

Besaran yang sama dinyatakan dalam setiap satuan

60 mph dalam setiap satuan Kecepatan Baris: 8

Satuan	Nilai	Definisi
meter per detik (m/s)	26.8224	Satuan dasar
kilometer per jam (km/h)	96.56064	1 km/h = 1,000/3,600 m/s, tepat
mil per jam (mph)	60	1 mph = 0.44704 m/s, tepat
knot (kn)	52.13857	1 kn = 1,852/3,600 m/s, tepat
foot per second (ft/s)	88	1 ft/s = 0.3048 m/s, tepat
kilometre per second (km/s)	0.0268224	1 km/s = 1,000 m/s, tepat
Mach (sea level) (Ma)	0.07882125	1 Ma = 340.294 m/s, perkiraan (Kecepatan suara di udara ISA pada permukaan laut, 15 °C)
speed of light (c)	8.94699 × 10⁻⁸	1 c = 299,792,458 m/s, tepat

Cara menghitung S

Konversi mil per jam ke meter per detik
$60\ \text{mph} \times 0.44704\ \tfrac{\text{m/s}}{\text{mph}} = 26.8224\ \text{m/s}$
1 mph = 0.44704 m/s, tepat
Konversi meter per detik ke kilometer per jam
$26.8224\ \text{m/s} \div \tfrac{1{,}000}{3{,}600}\ \tfrac{\text{m/s}}{\text{km/h}} = 96.56064\ \text{km/h}$
1 km/h = 1,000/3,600 m/s, tepat
Faktor gabungan
$1\ \text{mph} = \frac{0.44704}{\tfrac{1{,}000}{3{,}600}}\ \text{km/h} = 1.609344\ \text{km/h}$
Kedua satuan didefinisikan secara eksak dan nilai hasil konversi merupakan desimal berhingga, sehingga setiap digit yang ditampilkan bersifat eksak.

Tentang Konverter kecepatan

Each speed unit is a fixed number of metres per second. The road and sea units are exact: a mile per hour is 0.44704 m/s because the mile is 1,609.344 m, a kilometre per hour is 1/3.6 m/s, and a knot, one nautical mile per hour, is 1,852/3,600 m/s.

The default converts 60 mph to 96.56064 km/h, the figure a UK or US driver needs on metric roads. Sailors and pilots work in knots, and 1 knot is exactly 1.852 km/h.

Mach is fixed here at 340.294 m/s, the speed of sound in the International Standard Atmosphere at sea level and 15 °C, and results that use it are marked approximate because the real speed of sound falls with temperature. The speed of light is exactly 299,792,458 m/s by definition.

Contoh penyelesaian

60 mph in km/h

Nilai: 60 mph
Dari: mile per hour (mph)
Ke: kilometre per hour (km/h)

Nilai hasil konversi: 96.56064 km/h
Ketepatan: Eksak

Sumber pemeriksaan: 60 × 1609.344 m / 1000 = 96.56064 km/h (1 mi = 1609.344 m, NIST HB 44)

1 knot in km/h

Nilai: 1 kn
Dari: knot (kn)
Ke: kilometre per hour (km/h)

Nilai hasil konversi: 1.852 km/h

Sumber pemeriksaan: 1 knot = 1 nautical mile per hour = 1852 m/h (NIST SP 811 App. B)

100 km/h in m/s

Nilai: 100 km/h
Dari: kilometre per hour (km/h)
Ke: metre per second (m/s)

Nilai hasil konversi: 27.7777777778 m/s
Ketepatan: Definisi eksak, desimal berulang

Sumber pemeriksaan: 100000 m / 3600 s = 250/9 (Python 3.8 fractions from the legal definitions)

Speed of light in km/s

Nilai: 1 c
Dari: speed of light (c)
Ke: kilometre per second (km/s)

Nilai hasil konversi: 299,792.458 km/s

Sumber pemeriksaan: c = 299,792,458 m/s exactly (SI definition of the metre)

Pertanyaan

How do I convert mph to km/h?

Multiply by 1.609344: 60 mph × 1.609344 = 96.56064 km/h, and 70 mph is 112.65 km/h. The factor is exact because a mile is exactly 1,609.344 m. Multiplying by 1.6 is a mental shortcut that comes out 0.6% low; to go from km/h to mph, multiply by 0.621371.

How do I convert km/h to m/s?

Divide by 3.6, because an hour has 3,600 seconds and a kilometre 1,000 metres. 100 km/h is 27.78 m/s and 36 km/h is exactly 10 m/s. Multiply by 3.6 to go back: a sprinter at 10 m/s is running 36 km/h, or 22.37 mph.

What is a knot in mph and km/h?

One knot is exactly 1.852 km/h, about 1.15078 mph or 0.514444 m/s. It is one nautical mile (1,852 m) per hour, the speed unit of shipping and aviation, so a 30-knot wind is 55.56 km/h or 34.52 mph.

How fast is Mach 1?

In the International Standard Atmosphere at sea level (15 °C) it is 340.294 m/s, which is 1,225.06 km/h or 761.22 mph, the value this converter uses. The speed of sound depends on air temperature, so at 11 km altitude, where the standard atmosphere is −56.5 °C, Mach 1 is about 295 m/s or 1,062 km/h.

Why is the speed of light an exact number?

Because the metre is defined from it. Since 1983 the metre has been the distance light travels in vacuum in 1/299,792,458 of a second, which fixes c at exactly 299,792,458 m/s, or 1,079,252,848.8 km/h. Converting c into any unit here is therefore exact.

Seberapa akurat “Konverter kecepatan”?

Akurasi bergantung pada masukan dan asumsi metode. Aritmetika desimal memakai 50 digit signifikan, tetapi perkiraan, metode numerik dan data sumber bisa kurang presisi; pembulatan yang ditampilkan tidak menghilangkan batasan itu. Contoh penyelesaian yang diperiksa dengan sumber independen: 5. Misalnya, “60 mph in km/h” diperiksa dengan 60 × 1609.344 m / 1000 = 96.56064 km/h (1 mi = 1609.344 m, NIST HB 44).

Dari mana metode ini berasal?

NIST SP 811 (2008), Guide for the Use of the SI, Appendix B — conversion factors; NIST Handbook 44, Appendix C — General tables of units of measurement.

Tentang kalkulator ini

\begin{gathered} x_{\text{to}} = x_{\text{from}} \times \dfrac{f_{\text{from}}}{f_{\text{to}}} \\ f = \text{one unit expressed in } \text{m/s} \end{gathered}

Sumber

Diperiksa dengan referensi

Kalkulator ini mencakup 5 contoh perhitungan dengan jawaban dari sumber independen. Contoh tersebut dijalankan dalam rangkaian pengujian dan dapat Anda jalankan di sini juga.