Konverter energi

Konversi kWh ke BTU, kalori ke joule, kcal ke kJ, dan therm ke kWh menggunakan definisi tepat joule, kalori, BTU, dan elektronvolt.

Diperbarui 29 September 2026Contoh terverifikasi: 4

Nilai hasil konversi

BTU

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

Konversi: 1 kWh ≈ 3,412.142 BTU
Faktor konversi: 3,412.14163313
Ketepatan: Definisi eksak, desimal berulang

1 kWh kira-kira sama dengan 3,412.142 BTU.

Besaran yang sama dinyatakan dalam setiap satuan

1 kWh dalam setiap satuan Energi Baris: 14

Satuan	Nilai	Definisi
joule (J)	3,600,000	Satuan dasar
kilojoule (kJ)	3,600	1 kJ = 1,000 J, tepat
megajoule (MJ)	3.6	1 MJ = 1,000,000 J, tepat
watt-hour (Wh)	1,000	1 Wh = 3,600 J, tepat
kilowatt-hour (kWh)	1	1 kWh = 3,600,000 J, tepat
megawatt-hour (MWh)	0.001	1 MWh = 3,600,000,000 J, tepat
calorie (cal)	860,420.7	1 cal = 4.184 J, tepat (Kalori termokimia)
kilokalori (kcal)	860.4207	1 kcal = 4,184 J, tepat
British thermal unit (BTU)	3,412.142	1 BTU = 1,055.05585262 J, tepat
therm (US) (thm)	0.03412956	1 thm = 105,480,400 J, tepat
electronvolt (eV)	2.246943 × 10²⁵	1 eV = 1.602176634 × 10⁻¹⁹ J, tepat
erg	36,000,000,000,000	1 erg = 1 × 10⁻⁷ J, tepat
foot-pound (ft·lbf)	2,655,224	1 ft·lbf = 1.3558179483314004 J, tepat
tonne of oil equivalent (toe)	0.00008598452	1 toe = 41,868,000,000 J, tepat

Cara menghitung S

Konversi kilowatt-hour ke joule
$1\ \text{kWh} \times 3{,}600{,}000\ \tfrac{\text{J}}{\text{kWh}} = 3{,}600{,}000\ \text{J}$
1 kWh = 3,600,000 J, tepat
Konversi joule ke British thermal unit
$3{,}600{,}000\ \text{J} \div 1{,}055.05585262\ \tfrac{\text{J}}{\text{BTU}} = 3{,}412.14163313\ \text{BTU}$
1 BTU = 1,055.05585262 J, tepat
Faktor gabungan
$1\ \text{kWh} = \frac{3{,}600{,}000}{1{,}055.05585262}\ \text{BTU} \approx 3{,}412.14163313\ \text{BTU}$
Kedua satuan didefinisikan secara eksak, tetapi nilai hasil konversi merupakan desimal berulang; nilainya ditampilkan dengan 12 angka penting.

Tentang Konverter energi

Every energy unit is a fixed number of joules. A kilowatt-hour is exactly 3.6 MJ (1,000 W for 3,600 s), the thermochemical calorie is 4.184 J, and the International Table British thermal unit is 1,055.05585262 J (NIST SP 811), so each factor is a definition rather than a measurement.

The default converts 1 kWh to 3,412.14 BTU, the link between electricity bills and heating or air-conditioning ratings. Food energy is the other everyday use: a food Calorie is a kilocalorie, so a 2,000 kcal day is 8,368 kJ.

Some units share a name but not a size. The International Table calorie (4.1868 J) is 0.07% larger than the thermochemical one used here, and the US therm (105,480,400 J) is defined with the 59 °F BTU, so it comes to 99,976 International Table BTU rather than 100,000.

Contoh penyelesaian

1 kWh in BTU

Nilai: 1 kWh
Dari: kilowatt-hour (kWh)
Ke: British thermal unit (BTU)

Nilai hasil konversi: 3,412.14163313 BTU

Sumber pemeriksaan: 3,600,000 J ÷ 1055.05585262 J (International Table BTU, NIST SP 811 App. B) (Python 3.8 fractions from the legal definitions)

1 kcal in kJ

Nilai: 1 kcal
Dari: kilocalorie (kcal)
Ke: kilojoule (kJ)

Nilai hasil konversi: 4.184 kJ
Ketepatan: Eksak

Sumber pemeriksaan: Thermochemical calorie = 4.184 J exactly (NIST SP 811 App. B)

1 eV in joules

Nilai: 1 eV
Dari: electronvolt (eV)
Ke: joule (J)

Nilai hasil konversi: 1.602176634 × 10⁻¹⁹ J

Sumber pemeriksaan: e = 1.602176634 × 10⁻¹⁹ C exactly (SI 2019), so 1 eV = 1.602176634 × 10⁻¹⁹ J

1 US therm in BTU

Nilai: 1 thm
Dari: therm (US) (thm)
Ke: British thermal unit (BTU)

Nilai hasil konversi: 99,976.1289775 BTU

Sumber pemeriksaan: 105,480,400 J (NIST SP 811 App. B) ÷ 1055.05585262 J (Python 3.8 fractions from the legal definitions)

Pertanyaan

How many BTU are in a kWh?

3,412.14 BTU. A kWh is 3,600,000 J and the International Table BTU is 1,055.05585262 J, so 3,600,000 ÷ 1,055.05585262 = 3,412.1416. In the other direction 1 BTU is 0.000293071 kWh, so 100,000 BTU of heat is 29.31 kWh.

How many joules are in a calorie?

4.184 J for the thermochemical calorie used here, or 4.1868 J for the International Table calorie; NIST SP 811 lists both. Nutrition labels count kilocalories, often printed as “Calories”, so one food Calorie is 4,184 J or 4.184 kJ. EU food labels give energy in both kJ and kcal.

What is a unit of electricity?

One kilowatt-hour, 3.6 MJ: the energy a 1,000 W appliance uses in one hour. Electricity bills in the UK and India count “units” in kWh, so a 2 kW heater running for 3 hours uses 6 units, and a 10 W LED bulb takes 100 hours to use one.

What is the difference between kW and kWh?

A kilowatt measures power, the rate at which energy is used; a kilowatt-hour measures the energy itself, power multiplied by time. A 3 kW kettle running for 4 minutes uses 3 × 4/60 = 0.2 kWh. Convert kW with the power converter and kWh with this one.

How many kWh are in a therm?

29.3 kWh. The US therm is 105,480,400 J (NIST SP 811), which is 29.3001 kWh; the EU and UK therm, 100,000 International Table BTU or 105,505,585.262 J, is 29.3071 kWh. The two differ by 0.024%, so either rounds to 29.3 kWh.

Seberapa akurat “Konverter energi”?

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: 4. Misalnya, “1 kWh in BTU” diperiksa dengan 3,600,000 J ÷ 1055.05585262 J (International Table BTU, NIST SP 811 App. B) (Python 3.8 fractions from the legal definitions).

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{J} \end{gathered}

Sumber

Diperiksa dengan referensi

Kalkulator ini mencakup 4 contoh perhitungan dengan jawaban dari sumber independen. Contoh tersebut dijalankan dalam rangkaian pengujian dan dapat Anda jalankan di sini juga.