Hesabu ya Farasi
Mashine za kuzoa farasi kutoka torque na RPM, au kadirio la mwendo wa kasi wa kasi wa kilometa nne.
Matokeo yanakuwa bora zaidi unapochapa.
Kuhusu kifaa hiki cha kupigia hesabu
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.
Maswali yaliyoulizwa mara nyingi
Kwa nini 5252 katika kanuni ya nishati ya farasi?
Upandaji wa farasi unafafanuliwa kuwa meta 33,000 kwa dakika, na mapinduzi moja yanachukua nafasi ya 2furahi. Kuunganisha vima visivyobadilika hutoa HP = erque من 5252, ambayo pia ndiyo sababu nguvu za farasi na mipindo ya torque sikuzote huvuka mpindo ya 5252 RPM kwenye chati ya dyno.
Unakadiriaje nguvu za farasi kutoka umbali wa kilometa nne?
Roger Huntingtons fomyula huhusianisha mwendo wa kunasa na uzito wa nishati: kunasa mwendo wa kasi יהוה 234 (hp/trk)[1 /3 wmhrum.
Nguvu za farasi mmoja ni nyingi kadiri gani?
Mashine moja ya kuendesha farasi ina wati 745.7 hivi, kwa hiyo hup 300 ni kW karibu 224. Mashine hiyo inaonyesha kilowatt inayofanana na nguvu za farasi.
Kwa nini rque vilevile hutoa nguvu za farasi tofauti katika RPM tofauti?
Because power is torque times rotational speed. HP = torque × RPM ÷ 5252, so 300 lb-ft makes about 286 hp at 5,000 RPM but only 143 hp at 2,500 RPM — the reason engines are revved to reach peak power.
Ni nini kiwango cha uzito wa umeme kwa mwendo wa kasi wa kilometa moja?
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.
Je, ninaweza kukadiria nguvu za farasi kutoka kwenye mtego wangu?
Njia ya robo - nne ya mwendo wa kasi ya simedi ni mchanganyiko wa nguvu na uzito na mwendo wa kasi na ET.
Je, makadirio ya robo -mu ni sahihi?
They are ballpark figures. Huntington’s formulas ignore traction, aerodynamics, gearing, launch technique and driveline losses, so a real car can be several tenths of a second off. Treat them as a guide, not a substitute for a timed run.
API bustanini hutumia kifaa hiki cha hesabu kutoka kwenye mfumo wa sheria
Ipigie simu kifaa hiki cha kupigia hesabu kama Junse É not doot toder. Chochote unachoacha kinatumia kiwango kilekile cha mwisho ambacho ukurasa huu haujakamilika; parameta isiyojulikana ni 400, si sufuri kimya kamwe. Soma habari kamili za API docs →
keyboard label
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);Matokeo ni makadirio ya mwongozo wa ujumla, si wa kifedha, wa kitiba au wa kodi tu.