BILL PITC WEB
Electrical Calculator
Professional power conversion tools
Definition: This calculator converts electrical power (kilowatts) to current (amperes) based on voltage and circuit type.
Use Case: Essential for determining wire gauge, breaker sizing, and ensuring electrical safety in power system design.
I = 1000 × 5kW / 12V = 416.67 Amps
Definition: This calculator determines the voltage required to deliver a specific power when current is known.
Use Case: Useful for power supply design, battery system calculations, and determining operating voltage requirements.
V = 1000 × 2kW / 10A = 200 Volts
Definition: This calculator converts power consumption (kW) to energy usage (kWh) over a specified time period.
Use Case: Perfect for calculating electricity bills, energy consumption analysis, and estimating operating costs of electrical devices.
E = 1.5kW × 8h = 12 kWh
Definition: This calculator converts real power (kW) to apparent power (VA) using the power factor relationship.
Use Case: Critical for sizing generators, transformers, and UPS systems that must handle both real and reactive power components.
S = 1000 × 3kW / 0.85 = 3,529.41 VA
Note: Power factor must be between 0.1 and 1.0 (e.g., 0.8 = 80% efficiency)
Definition: This calculator converts real power (kW) to apparent power (kVA) for electrical system capacity planning.
Use Case: Essential for selecting proper transformer ratings, generator sizing, and electrical distribution system design.
S = 10kW / 0.9 = 11.11 kVA
Definition: This calculator converts energy consumption (kWh) back to average power demand (kW) over a time period.
Use Case: Helpful for analyzing energy bills, determining average load demands, and energy audit calculations.
P = 100 kWh / 50h = 2 kW
Definition: This calculator converts energy consumption (kWh) to average power consumption in watts over time.
Use Case: Ideal for appliance power rating verification, small device energy analysis, and residential energy monitoring.
P = 1000 × 5 kWh / 10h = 500 Watts
| Device | Typical Power Factor |
|---|---|
| Resistive loads (heaters, incandescent bulbs) | 1.0 |
| Fluorescent lamps | 0.95 |
| LED lamps | 0.9 |
| Induction motors full load | 0.85 |
| Induction motors half load | 0.73 |
| Household appliances | 0.8 |
| Synchronous motors | 0.9 |
FAQS
1 kW to amps in 3 phase?
For 3-phase systems, 1 kW equals 1.39 amps at 415V (using power factor 0.8). The formula is: Amps = kW × 1000 ÷ (√3 × Voltage × Power Factor).
kW to amps calculator - How do I convert kilowatts to amperes?
To convert kW to amps, use: Amps = (kW × 1000) ÷ Voltage for DC/single-phase, or Amps = (kW × 1000) ÷ (√3 × Voltage × PF) for 3-phase. Online calculators simplify this process instantly.
1 kW to amps 415V - What's the current draw?
At 415V single-phase, 1 kW draws 2.41 amps (assuming unity power factor). For 3-phase 415V systems, 1 kW typically draws 1.39 amps with a 0.8 power factor.
Amp to kW 3 phase formula - How to calculate power from current?
The 3-phase formula is: kW = (Amps × √3 × Voltage × Power Factor) ÷ 1000. For example, 10 amps at 415V 3-phase (0.8 PF) equals 5.74 kW.
How to convert watts to amps for LED lighting calculations?
For LED watts to amps: Amps = Watts ÷ Voltage. A 50W LED strip at 12V draws 4.17 amps, while the same power at 24V draws 2.08 amps.
kVA rating vs kW rating - Which is more important?
kVA rating determines maximum current capacity, while kW rating shows actual power output. Both are important: kVA for sizing electrical components, kW for energy consumption calculations.
kW to amps 440V - What's the amperage at 440 volts?
At 440V single-phase, 1 kW equals 2.27 amps. For 440V 3-phase systems, 1 kW draws approximately 1.30 amps (assuming 0.8 power factor).
kVA to kW calculator - How do I convert apparent power to real power?
Convert kVA to kW using: kW = kVA × Power Factor. Most equipment has a power factor between 0.8-0.95, so 10 kVA typically equals 8-9.5 kW.
1 kW to amps in single phase - What's the current requirement?
In single-phase systems, 1 kW requires 4.17 amps at 240V, 8.33 amps at 120V, or 4.35 amps at 230V. Use the formula: Amps = (kW × 1000) ÷ Voltage.
kVA to amps conversion - How do I calculate current from apparent power?
Convert kVA to amps using: Amps = (kVA × 1000) ÷ Voltage for single-phase, or Amps = (kVA × 1000) ÷ (√3 × Voltage) for 3-phase systems.
How many amps does a 5 kW load draw at 240V?
A 5 kW load draws 20.83 amps at 240V single-phase using the formula: Amps = (5 × 1000) ÷ 240. For 3-phase 240V, it would draw approximately 12.03 amps.
What's the difference between kW, kVA, and amperage?
kW measures real power consumption, kVA measures apparent power (includes reactive power), and amps measure electrical current flow. The relationship depends on voltage and power factor in AC systems
See Also