Power Calculator
Calculate power, work, or energy over time. Supports mechanical (P = W/t), electrical (P = V·I), and unit conversions for watts, joules, volts, and amps.
mechanical power calculator:
This Power Calculator is used to calculate mechanical or electrical power. Key in work, time, force, velocity, voltage, current, or resistance. The tool uses P = W/t, P = F·v, P = V·I, or P = I²R to compute unknown power values, and also calculates step by step, with unit conversion options available.
Energy to Power Converter Tool Formula:
The Power Calculator will enable you to calculate mechanical or electrical power at a fast rate. P = W / t (work done/unit time) or P = F 0 v (force/velocity) are used to calculate mechanical power. P = V · I (voltage multiplied by current), may use resistive equivalents (P = I² R or P = V² / R), and may be entered in work units (Joules), force (N), velocity (m/s), time (s), voltage (V), current (A) or resistance (Ω), which then solves the unknown power.
Its calculator allows the use of SI units: watts (W) in power, joules (J) in work, volts (V), amps (A), ohms (Ω), and seconds (s). The formula is presented in steps along with the calculation. It is also ideal with physics students, engineers, or technicians who are studying energy, work, or electrical circuits since optional unit conversions can be done, such as watts to kilowatts to horsepower, etc. Examples and printable results assist in lab work, homework, or practical use.
⚡ Work & Installation Input to Output:
Input:
- Mechanical: Work (W), Force (F), Velocity (v), Time (t)
- Electrical: Voltage (V), Current (I), Resistance (R)
Processing:
- Convert input values to SI units if needed.
- Apply formulas: 1. Mechanical: P = W / t or P = F·v 2. Electrical: P = V · I, P = I² R, P = V² / R
- Solve for unknowns.
- Validate inputs (non-zero time, non-zero resistance).
Output:
- Power in watts (W) and optional conversions to kilowatts (kW) or horsepower (hp).
- Step-by-step formula substitutions.
- Optional printable summary for lab or homework.
Testing and Final Adjustments
Test common scenarios:
- Mechanical: W = 100 J, t = 5 s → P = 20 W
- Mechanical: F = 10 N, v = 2 m/s → P = 20 W
- Electrical: V = 12 V, I = 2 A → P = 24 W
- Electrical resistive: I = 3 A, R = 4 Ω → P = 36 W
Validate unit conversions, edge cases (t = 0, R = 0), and clarity of step-by-step solutions. Ensure the numeric keypad activation on mobile, labeled input fields, and error messages for invalid or missing inputs. Include presets for labs or real-world electrical/mechanical calculations. Verify printable output and confirm SEO metadata includes “Power Calculator, “Mechanical Power,” “Electrical Power,” and schema markup.
Frequently Asked Questions - Power Calculator:
What is power?
Power is the rate at which work is done or energy is transferred, measured in watts (W).
How do I calculate mechanical power?
Use P = W / t for work over time or P = F · v for force times velocity.
How do I calculate electrical power?
Use P = V · I or P = I² R or P = V² / R for circuits.
What units are supported?
Mechanical power in watts (W), work in joules (J), electrical power in W, voltage in volts, current in amps, resistance in ohms.
Can I convert watts to horsepower?
Yes, 1 horsepower ≈ 746 W.
Can I calculate power from energy and time?
Yes, P = W / t.
Is step-by-step solution available?
Yes, formulas and substitution steps are shown.
Who should use this calculator?
Students, engineers, technicians, and physics enthusiasts analyzing power and energy.
Can it handle resistive power?
Yes, P = I² R or P = V² / R is supported for resistive electrical loads.
Does it support unit conversions?
Yes, between watts, kilowatts, and horsepower, as well as common mechanical and electrical units.
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