Kalkulator Kuasa Kuda

Calculate horsepower from torque and RPM, find torque from HP, or convert between HP, kW, and watts. Free, fast, and easy to use.

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Choose a calculation type, enter your values, and click Calculate Now to get instant results with step-by-step solutions.

Panduan Pengguna Lengkap

Apakah kuasa kuda?

Horsepower (HP) is a unit of power that measures the rate at which work is done. It was defined by James Watt to compare steam engines with draft horses. One mechanical horsepower equals 745.7 watts or 0.7457 kilowatts. Horsepower is the standard power rating for car engines, electric motors, and industrial machinery worldwide.

All Formulas at a Glance

HP from Torque: HP = (Torque × RPM) / 5252

Torque from HP: Torque = (HP × 5252) / RPM

RPM from HP: RPM = (HP × 5252) / Torque

Penukaran: 1 HP = 745.7 W = 0.7457 kW

4 Calculation Types

HP daripada Tork & RPM

Pengiraan kuasa enjin yang paling biasa. Masukkan tork (ft-lb atau N·m) dan RPM.

Tork dari HP & RPM

Cari berapa banyak tork yang dihasilkan oleh enjin pada HP dan RPM tertentu.

RPM dari HP & Tork

Cari RPM di mana enjin menghasilkan kuasa puncak untuk tork tertentu.

Tukar Unit Kuasa

Convert between horsepower (HP), kilowatts (kW), and watts (W).

Cara Menggunakan Kalkulator Ini

  1. Pick a calculation type — HP from torque, torque from HP, RPM from HP, or power conversion.
  2. Enter torque in foot-pounds (ft-lb) or Newton-meters (N·m) as needed.
  3. Masukkan RPM atau kuasa kuda bergantung pada mod.
  4. Click Calculate Now and see instant results with step-by-step breakdown and chart.

Mengapa 5252?

The constant 5252 comes from unit conversions. One horsepower is 550 ft-lb per second. To go from RPM to radians per minute: (550 × 60) / (2π) ≈ 5252. This means horsepower and torque curves always cross at 5252 RPM when plotted on the same graph.

Key Conversion Factors

• 1 HP = 745.7 Watt = 0.7457 kW

• 1 kW = 1.341 HP = 1,000 Watt

• 1 kaki-lb = 1.3558 N·m

• 1 N·m = 0.7376 kaki-lb

Quick Examples

• 300 kaki-lb pada 5252 RPM → (300 × 5252) / 5252 = 300 HP

• 200 HP pada 6000 RPM → (200 × 5252) / 6000 = 175.07 kaki-lb

• 150 HP = 111.86 kW = 111,855 W

Nota Penting

  • Semua nilai tork dan kuasa mestilah lebih besar daripada sifar.
  • HP = (Torque × RPM) / 5252 applies only to rotational power in imperial units.
  • Newton-meter inputs are automatically converted to ft-lb for the formula.
  • Ini ialah nilai kuasa kuda mekanikal (brek). Takrif HP lain wujud (HP metrik, HP elektrik).

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