Converts electric current from one unit to another e.g. from miliamperes (mA) to amperes (A) or vice versa.
- Electric resistivity units
More than 170 restivity units. Here you found common units such as ohm times metre (Ω × m) or ohm times inch (Ω × inch), but also less known for example statohm times inch (statohm × inch).
- Electromagnetic waves
Table shows common classification of electromagnetic waves based on frequency (wavelength). Also, example methods of producing/generating and applications for given wavelengths are presented.
More than 25 frequency units. Common SI units such as hertzs (Hz), kilohertz (kHz), gigahertz (GHz), but also some less known like radians per seconds, RPM (rotatinions per minute) or degrees per hours.
Generates sound with specified frequency and waveform type (sine, triangle etc.).
Table shows resistivity values of common materials (substances).
Table shows common Morse codes for letters, digits and selected special codes such as international SOS signal.
Calculator encodes given text message into Morse codes or vice versa. You can also hear (beeps) and see (as sequence of light pulses) your Morse encoded message. For better readability currently played Morse character is higlighted (marked).
Current, voltage, resistance: calculations related to Ohm law. Enter known values (e.g. voltage and resistance of conductor) and we'll show you step-by-step how to transform basic formula and find out missing value (e.g. current)
Table shows properties of common periodic signals (sine, square, triangle etc.) such as absolute mean value, effective value or shape factor.
Converts electrical resistance value from one unit to another e.g. from ohms (Ω) to megaoms (MΩ) or vice versa.
Calculator decodes parameters of the resistor (resistance value, tolerance, temperature coefficient) painted as colored bands on the resistor and vice versa.
Converts voltage from one unit to another e.g. from milivolts (mV) to volts (V) or vice versa.
- Wire of a given length resistance
Calculator shows relation between wire dimensions (length, cross-surface area), kind of material (resistivity) and resistance of the final conductor.