Best apps like Transformer Calculator.

16+ similar apps compared and reviewed

3.5 avg rating
8 free apps
Updated July 2026

Looking for something like Transformer Calculator.? We've analyzed 16+ similar apps to help you find the best alternative. Each app is compared by ratings, features, and real user reviews, so you can make the right choice.

Top Alternatives to Transformer Calculator.

Transformer Calc 2#1

Transformer Calc 2 by Snappy Appz Inc.

Editor's Choice
🔧 Utilities
1.0(1 ratings)
$3.99
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This app provides electricians with instant transformer sizing and advanced construction math, compliant with both US (NEC 2023) and Canadian (CEC 2024) electrical codes. It simplifies complex calculations for wire, conduit, and overcurrent protection, and includes a fractional construction calculator.

ElectriCalc Pro#2

ElectriCalc Pro by Calculated Industries

Electrician NEC Calculator
Strong Contender
🔧 Utilities
4.9(256 ratings)
FreeIn-App Purchases
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This app provides electricians and electrical professionals with a powerful tool for performing complex calculations based on the latest National Electrical Code (NEC). It offers solutions for wire sizing, voltage drop, conduit sizing, and motor calculations, saving time and ensuring code compliance.

Transformer Calculator Plus#3

Transformer Calculator Plus by Nitrio

Step-up Step-down Transformer
Worth Considering
🔧 Utilities
3.3(4 ratings)
$2.99
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This utility app calculates key parameters for transformers, including voltage, current, and turns ratio. It helps determine if a transformer is step-up or step-down, essential for power conversion applications.

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4
Southwire® Conversion Calc
Southwire® Conversion Calc
Southwire® Conversion Calc
Southwire
Free

This utility app facilitates conversions between copper and aluminum electrical wiring. It allows users to calculate pricing, unit of measure, conversion factors, and weight based on product length. The app comes preloaded with numerous cable types for easy calculation.

Copper to aluminum conversionAluminum to copper conversionPricing unit of measure calculation
🔧 Utilities
(5)
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5
Southwire® Voltage Drop Calc
Southwire® Voltage Drop Calc
Southwire® Voltage Drop Calc
Southwire Calculator
Free

Calculate the appropriate wire size for electrical circuits. This tool helps determine wire size based on voltage drop and current carrying capacity, ensuring compliance with NEC ampacity limits.

Determine wire size for voltage dropCalculate voltage drop for conductor runsLimit wire size by voltage drop
🔧 Utilities
(1.5K)
free
6
Southwire® Conduit Fill Calc
Southwire® Conduit Fill Calc
Southwire® Conduit Fill Calc
by Southwire Company
Free

This tool assists electricians, engineers, and contractors in determining the correct conduit size based on NEC guidelines. It calculates conduit fill percentages and jam probability, saving time compared to manual calculations.

Conduit size calculationNEC fill percentagesJam probability
🔧 Utilities
(746)
free
7
Mike Holt's Electrical Toolbox
Mike Holt's Electrical Toolbox
Mike Holt's Electrical Toolbox
Electrical Power Calculator
Free

This app provides essential calculations for electricians, inspectors, contractors, and engineers. It helps determine conductor sizing, circuit protection, race sizing, and grounding conductor sizes for various electrical equipment and services.

Conductor sizingVoltage drop limitationsCircuit protection sizing
🔧 Utilities
(197)
free
8
Building Wire Selector
Building Wire Selector
Building Wire Selector
Southwire Calculator
Free

This tool helps determine the correct conductor size and wire type for electrical installations. It adheres to the National Electrical Code® wiring methods, ensuring compliance and safety.

Conductor size determinationWire and cable type selectionNational Electrical Code compliance
🔧 Utilities
(2)
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9
Rule of Three Calculator
Rule of Three Calculator
Rule of Three Calculator
by Saran Dumronggittigule
Free

This utility app helps you solve problems involving ratios and proportions. It calculates an unknown number based on the relationship between two other known numbers.

Ratio calculationProportion solvingFinds unknown numbers
🔧 Utilities
(4)
free
10
小灵龙App
小灵龙App
小灵龙App
by 北京新中新诚通信息技术股份有限公司
Free

This app provides comprehensive mobile services for campus cards, including traditional card functions like consumption and authentication, enhanced with QR code capabilities. It offers features for managing your campus card, paying various campus fees, and booking campus facilities.

Campus card managementQR code functionalityCampus fee payments
🔧 Utilities
(12)
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