Power Calculation from Current and Resistance

Power Equation for Current and Resistance

P = I² R

Current (I) in Amps Resistance (R) in Ohms

Resulting Power

0.00 W

Power Calculation from Voltage and Resistance

Power equation for voltage and resistance

P = V² / R

Voltage (V) Resistance (Ω)

Resulting Power

0.00 W

Power Calculation from Voltage and Current

Power Equation for Voltage and Current

P = V x I

Voltage (V): Current (A):

Result: -- W

Voltage Divider Calculator

Voltage Divider Calculator

Input Voltage (Vin)

Resistor R1 (Ω)

Resistor R2 (Ω)

Calculated Output

8.00 V

Equation: Vin × (R2 / (R1 + R2))

Parallel Resistance Calculator

Parallel Resistance Calculator

R1

R2

Total Equivalent Resistance

0.00 Ω

SMD Pad Size Calculator for PCB Design

SMD components require precisely sized soldering pads during assembly. Many of the footprints created by PCB designers are still based on data sheets and IPC-7351's standard pad and land size calculations as below.

Enter A,B and C Values in mm: PAD SIZE (X/Y)

X: 0

Y: 0

PAD LOCATION (X/Y)

X: 0

Y: 0