EnginCalc Δ — Electric Power

Calculate electric power relation: P = V · I. Enter any two values — the third will be calculated.

Note: simplified formula P = V · I, SI units only.

EnginCalc Δ — Ohm’s Law

Ohm’s law relation V = I · R. Enter any two values — the third will be calculated.

Note: basic Ohm’s law, SI units only.

EnginCalc Δ — Energy & Cost

Compute energy in kWh and approximate cost: E = P · t / 1000.

Note: assumes constant power during the whole period.

EnginCalc Δ — Series Resistors

Total resistance in series: R_total = R1 + R2 + R3 + …

Note: zero or negative values are ignored.

EnginCalc Δ — Parallel Resistors

For parallel connection: 1/R_total = 1/R1 + 1/R2 + …

Note: only positive resistor values are used in the formula.

EnginCalc Δ — Electric Power (P = V · I)

This mini-calculator helps you work with the basic electric power formula P = V · I. Enter any two values — power, voltage or current — and the tool will calculate the missing parameter.

It is useful for checking household appliance power, selecting a power supply, or quickly estimating how much current a device will draw at a given voltage. All calculations use standard SI units: watts (W), volts (V) and amperes (A).

EnginCalc Δ keeps everything simple and anonymous: no accounts, no logs, only clear logic and instant results directly in your browser.

EnginCalc Δ — Ohm’s Law (V, I, R)

This calculator works with the classic Ohm’s law relation V = I · R. Type any two values — voltage, current or resistance — and the tool instantly finds the third.

It is handy for electronics beginners, students and engineers who need to size resistors, estimate current in a circuit or check safe operating conditions for components. Units: volts (V), amperes (A) and ohms (Ω).

The interface is minimalistic: only the fields you need, no registration, just transparent calculations.

EnginCalc Δ — Energy & Cost (kWh)

This calculator converts device power and usage time into energy in kilowatt-hours (kWh) and optionally estimates electricity cost.

Enter power in watts, time in hours and, if you want, your tariff per kWh. The tool shows how much energy the device consumes and how much it approximately costs to run it for the selected period.

It is perfect for estimating the cost of computers, heaters, air conditioners and other appliances, as well as for educational examples in physics and engineering.

EnginCalc Δ — Series Resistors

This tool calculates total resistance for a series connection of resistors. Simply enter one or more resistor values; the calculator sums them and shows the resulting resistance.

Series connections appear in voltage dividers, sensor circuits and many basic electronic schemes. Knowing the total resistance helps you predict current, voltage drops and power dissipation.

Units are standard ohms (Ω). Empty fields can be skipped, so you can use the tool for two, three or four resistors at once.

EnginCalc Δ — Parallel Resistors

This calculator finds the total resistance of resistors connected in parallel using the formula 1/R_total = 1/R1 + 1/R2 + …

Parallel connections are common in power electronics, LED strips and current-sharing networks. The tool accepts up to four resistor values, ignores empty fields and returns the resulting equivalent resistance.

All values are in ohms (Ω). It is a quick way to test combinations and balance current between branches in a circuit.