Only available in English.

Comprehensive collection of electronics calculators, tools and reference tables.

Ultimate Calculator Pro is a utility application consisting of 157 calculators, conversions, reference tables, pin outs; and a basic pocket calculator.

Calculators:

DC Circuits:
• Ohm`s Law
• Voltage divider - resistive
• LED resistor
• RL transient circuits
• RC transient circuits
• Wheatstone bridge
• Battery life

AC Circuits:
• Reactance
• Impedance
• Star Delta Transformation
• AC Power
• Voltage divider - capacitive

Power Supply:
• Transformer ratios
• Rectifiers
• Capacitor filter
• Transformer efficiency
• Voltage regulator - LM317
• Voltage regulator - Zener diode

Amplification:
• Slew Rate
• Gain | Ratio
• Non-Inverting Amplifier
• Inverting Amplifier
• Differential Amplifier
• Inverting Summing Amplifier

Filters:
• RC filter – passive
• LC filter – passive
• RL filter – passive




Semiconductors:
• Series Circuits
• Parallel Circuits
• Capacitors
• Inductors
• Diodes
• 555 Timer
• Air Core Inductors
• LM 3914 Display driver
• LM 3915/6 Display driver

Identification:
• Resistor – color codes
• Inductor – color codes
• Capacitor – printed
• Fuse, glass – color codes
• Diodes
• 7-Segment display

Physics:
• Coulomb`s Law
• Magnetism
• Joules Law – heating
• Electrical energy

Geometry:
• Area (rectangle, triangle, circle, trapezoid, ellipse, square, parallelogram, sector)
• Surface area (cylinder, sphere, cube, cone)
• Volume (rectangle, cylinder, sphere)

Radiation:
• Electromagnetic wave (wavelength, frequency, period)
• Propagation delay (distance vs. time)
• Resonance (frequency, inductance, capacitance)
• Radiated power (vs. VSWR)
• Air core inductors (inductance, turns)

RF Link:
• Free space path loss (loss, distance)
• Link budget (RSSI, fade margin)
• Fresnel zone (1st, max, 60%, Er)

RF Base Station:
• Transmission line (Tx, Att, Pout)
• EIRP ERP (effective radiated power)
• Antenna down-tilt – angle (angle, distance)
• Antenna down-tilt – coverage (inner & outer radius)



Radar:
• Power density (W/m²)
• Maximum range (distance)



Losses:
• Attenuators (Pi, Tee)
• VSWR (voltage standing wave ratio)
• Reflection coefficient (Rho)
• Return loss (dB)
• Mismatch loss (dB)

Converters:

• Angle
• Area
• Cooking
• Current (RF)
• Distance | Length
• Energy
• Field strength (RF)
• Fuel consumption
• Mass
• Number base
• Power
• Power (RF)
• Pressure
• Si units
• Sine wave
• Speed
• Storage
• Temperature
• Terminated (RF)
• Time
• Torque
• Voltage (RF)
• Volume

Reference:
• SI unit prefixes
• Logic gates
• 74xx ic
• ASCII
• Abbreviations
• Schematic symbols
• Ingress protection
• Decibel suffixes
• RF Spectrum
• Amateur band plan – IARU region 1
• Amateur Q codes
• Phonetic alphabet (NATO)
• IT Acronyms
• Units of measure

Pin out:
• Audio/video
 RCA connector
 Jack - TS
 Jack - TRS
 Jack – TRRS
 Jack – TRS color codes
 SCART
 VGA
 DIN
 DVI
 DVI mini
 DVI types
 HDMI type A


• Computer
 USB - type A and B
 USB - mini and micro
 Serial - DE9
 Serial - DB25
 PS2
 AT keyboard
 SATA – data
 SATA – power
 Molex – atx power
 Molex – power
 USB-C

• Gaming
 Game/MIDI port

• Boards
• Raspberry Pi – GPIO
• Arduino UNO

• Components
• Led – 2 pin
• Led – RGB
• Regulator – 78xx/79xx
• Regulator – LM317
 Display – LED 7 segment
 Display - LCD 16 x 2 (1602)
 Display - LCD 16 x 4 (1604)
 Display driver – LM391x
 Transistor – TO-92

• Microcontroller
 Atmega 8 - DIP
 Atmega 8 - MLF
 Atmega 8 - TQFP
 Atmega 328 - DIP
 Atmega 328 - TQFP
 Atmega 328 - MLF
 Atmega 2560
 Atmega 8u2 - QFN
 Atmega 8u2 - TQFP
 Atmega 16u2 - QFN
 Atmega 16u2 - TQFP
 Atmega 32u2 - QFN
 Atmega 32u2 - TQFP

• Miscellaneous
 OBD II
 Memory card – SD
 Memory card – mini SD
 Memory card – micro SD