Electrical Power Calculator
Calculate electrical power for DC and AC circuits quickly. Find real, apparent, and reactive power using voltage, current, and power factor values.
Electrical Power Calculator:
The rate of energy consumed or delivered in a circuit is referred to as electrical power. The Electrical Power The calculator will enable solving the DC power, AC real, apparent,t, and reactive power by entering the voltage, current, and power factor. It gives the correct power readings in the analysis of the circuits, estimation of energy, and calculations of the load.
Electrical Power Tools formula
The Electrical Power Calculator is used to compute power in DC and AC circuits with the use of voltage, current, and power factor. In the case of DC circuits, the formula used to compute power is V × I = P. In the case of AC circuits, it calculates real power (P = V x I x cos 2), apparent power (S = V x I), and reactive power (Q = V x I x sin 2).
This calculator is important to electrical engineers, students, and electricians to examine the performance of a circuit, approximate the energy usage, and design an electrical system. All one needs to do is enter the voltage, current, and power factor (in AC), and the device will automatically display the power values in watts (W), volt-amperes (VA), and reactive volt-amperes (VAR).
Work & Installation — Input to Output Summary
Work:
- Calculates DC and AC power.
- Supports real, reactive, and apparent power computation.
- Useful for load analysis, energy estimation, and electrical system design.
Installation:
- Add HTML input fields for voltage, current, and power factor.
- Include JavaScript formulas:
DC: P = V × I
AC: P = V × I × cosφ, Q = V × I × sinφ, S = V × I - Display output in W, VA, VAR.
Input:
- Voltage (V)
- Current (I)
- Power factor (PF, for AC)
Output:
- DC Power (P, W)
- AC Real Power (P, W)
- AC Reactive Power (Q, VAR)
- AC Apparent Power (S, VA)
Testing and Final Adjustments
The best calculator for known DC and AC circuits. Test DC: V = 12 V, I = 2 A, P = 24 W, Test AC: V = 230 V, I = 10 A, PF = 0.8, P = 1840 W, S =2300 VA, Q = 1380 VAR. Make sure that you handle units and power factor conversions (percent to decimal) correctly. Insert input verification to exclude negative or zero values. Test in various browsers and mobiles. Additionally, optional conversion between watts, kilowatts, and megawatts. As soon as this is confirmed, a complete responsive design, tooltips, and formatting to be used in education, professional, and industrial contexts.
Frequently Asked Questions - Electrical Power Calculator:
What is electrical power?
Electrical power is the rate at which electrical energy is consumed or delivered in a circuit.
How do you calculate DC power?
DC power is calculated as P = V × I, where V is voltage and I is current.
How do you calculate AC real power?
Real power in AC is P = V × I × cosφ, where φ is the phase angle or power factor.
What is apparent power?
Apparent power is S = V × I, representing the total power in an AC circuit.
What is reactive power?
Reactive power Q = V × I × sinφ represents the power stored and released by reactive components.
What units are used for power?
Real power is in watts (W), apparent power in volt-amperes (VA), and reactive power in VAR.
Can this calculator handle both AC and DC?
Yes, it can calculate power for DC and AC circuits with power factor input for AC.
What is power factor?
Power factor is the ratio of real power to apparent power in an AC circuit.
Why is electrical power important?
It helps in estimating energy consumption, designing circuits, and selecting equipment ratings.
Can this calculator be used for industrial loads?
Yes, it is suitable for residential, commercial, and industrial electrical systems.
