Kalkulator
Motor listrik bisa dipérang dadi motor listrik listrik lan motor listrik listrik.
Hasilne bakal dioptimalake nalika sampeyan ngetik.
Ngenai kalkulator iki
Horsepower measures the rate of doing work, and this horsepower calculator finds it two ways. In the first mode, engine power follows directly from torque and rotational speed: HP = torque (lb-ft) × RPM ÷ 5252. The magic number 5,252 comes from the definition of horsepower (33,000 ft-lb per minute) and the 2π radians in a revolution, and it is also the RPM at which the horsepower and torque curves always intersect on a dyno chart. The tool reports the metric equivalent too, using 1 hp = 0.7457 kW.
As a worked example, an engine making 300 lb-ft of torque at 5,000 RPM produces 300 × 5000 ÷ 5252 ≈ 286 hp, which is about 213 kW. Because power is torque times speed, the same 300 lb-ft makes far more horsepower at high RPM than at low — which is why high-revving engines chase big peak-power figures even with modest torque.
Switch to the quarter-mile mode to estimate drag-strip performance from power and vehicle weight using Roger Huntington’s classic empirical formulas: trap speed ≈ 234 × (hp / weight)^⅓ mph and elapsed time ≈ 5.825 × (weight / hp)^⅓ seconds. A 300 hp car weighing 3,500 lb comes out around 103 mph and a 13.2-second quarter mile. These are rough guides that ignore traction, aerodynamics and driver skill, but they are a quick sanity check for a build or a way to back out power from a known trap speed.
Takon-takon kang kerep diajukake
5252 ing formula horsepower.
Kuda-kuda didefinisikan salaku 33.000 ft-lb per menit, sarta hiji revolusi sweeps 2π radians. ngagabungkeun konstanta masihan HP = torsi × RPM ÷ 5252, anu ogé naha kuda-kuda jeung kurva torsi salawasna ngaliwatan 5252 RPM dina chart dyno.
Apa sampeyan bisa ngitung tenaga kuda saka setengah mil?
Roger Huntington’s formula links trap speed and weight to power: trap speed ≈ 234 × (hp/weight)^⅓ mph. The calculator inverts it to estimate trap speed and elapsed time from your power and weight, a rough guide that ignores traction and aerodynamics.
Zenbat watt da bat horsepower?
Sahiji kuda mekanis kakuatan kira-kira 745.7 watt, jadi 300 hp kira-kira 224 kW. Kalkulator nu nembongkeun kilowatt sarua dibarengan kuda kakuatan.
Apa tegese ikatan rangkap sing padha bisa dibentuk ing titik-titik sing beda?
HP = torsi × RPM ÷ 5252, jadi 300 lb-ft ngahasilkeun 286 hp nalika 5000 RPM tapi ngan 143 hp nalika 2500 RPM — alesan mesin di-revved kanggo ngahontal kakuatan puncak.
Apa sing dadi rasio daya-kanggo-bobot sing apik kanggo jarak sing cepet?
Trap speed scales with the cube root of horsepower per pound, so weight matters as much as power. Around 0.1 hp per pound (a 350 hp, 3,500 lb car) puts you near 110 mph traps; shedding weight helps just as much as adding power.
Apa aku bisa ngitung tenaga kuda saka kecepatan trapku?
Dina wangun anu paling umum, algoritma ieu ngalaksanakeun palaksanaan paréntah-paréntah anu dilaksanakeun ku komputer, anu dilaksanakeun ku cara ngarobah nilai-nilai input kana nilai-nilai output, anu dihasilkeun ku komputer.
Apa sing diarani 4000 meter iku bener?
Éta angka ballpark. Formula Huntington ngawatesan traksi, aerodinamika, gearing, teknik launching jeung driveline karugian, jadi mobil nyata bisa jadi sababaraha puluhan detik off. Ngarawat aranjeunna salaku panduan, teu gantina pikeun hiji run timed.
API — gunakake kalkulator iki saka kode
Ngadongékeun kalkulator ieu minangka titik akhir JSON bébas — teu peryogi kunci. Kirim nilai medan di handapeun minangka parameter pitakonan atawa JSON. Anything you omit uses the same default this page is pre-filled with; an unknown parameter is a 400, never a silent zero. Waca dokumen lengkap API →
Tampilan
GET https://calculator.free/api/v1/horsepower/curl
curl "https://calculator.free/api/v1/horsepower/?torque=300&rpm=5000&hp=300&weight=3500&_mode=power"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/horsepower/?" + new URLSearchParams({
"torque": "300",
"rpm": "5000",
"hp": "300",
"weight": "3500",
"_mode": "power"
}));
const data = await r.json();
console.log(data.results);Hasilna nyaéta perkiraan pikeun pituduh umum, henteu saran finansial, médis atanapi pajak.