Work · alternatives · 2026

24 alternatives to TradeHub Tools

Free NEC Electrical and HVAC Field Calculators

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1
ElectricianCalc.com▲11
Free electrical calculators & tools
2025 · electriciancalc.com · its alternatives →
2
HVAC Tools Hub▲4
Free HVAC calculators and practical reference tools
Aug 2026 · hvactoolshub.com · its alternatives →
3
Trade Tools - Free tool for Construction▲3
Pipe, concrete, electrical & tile calculators — free
May 2026 · pipesizecalculator.com · its alternatives →
4
FieldCalc HVAC▲8
Offline HVAC calculator: R-454B PT, superheat, duct, load
Jul 2026 · apps.apple.com · its alternatives →
5
HVAC Admin ▲2
Free tools & knowledge hub for HVAC techs
Feb 2026 · hvacadmin.com · its alternatives →
6
VoltFlow.net
Power your Life Smarter
Apr 2026 · voltflow.net · its alternatives →
7
VoltWirer▲1
Five essential calculators built for licensed electricians
Jun 2026 · voltwirer.com · its alternatives →
8
GridPulse▲3
AI chat + 7 calculators for power systems engineers. Free.
Apr 2026 · chromewebstore.google.com · its alternatives →
9
MyElectricCalc▲1
Free electrical calculators for home & DIY projects
May 2026 · myelectriccalc.com · its alternatives →
10
TradeCalc
92 free calculators for builders, contractors & DIY
Apr 2026 · tradecalc.org · its alternatives →
11
HVAC Toolkit▲61
HVAC ToolKit is an easy-to-use app to assist engineers
2023 · hvac.meptoolkit.com · its alternatives →
12
FieldCalc Pro
28 code-compliant calculators. 100% offline. No account.
Mar 2026 · bytecovesoftware.com · its alternatives →
13
Tonnage Calculator AC▲2
Find the Right AC Size & BTU Needs
Jun 2026 · tonnagecalculatorac.com · its alternatives →
14
Professional Conduit Fill Calculator▲1
About Professional Conduit Fill Calculator
2025 · conduit-fill-calculator.com · its alternatives →
15
AC Bill Calculator India▲11
See your AC’s power consumption, costs & savings in seconds
2025 · acbillcalculator.in · its alternatives →
16
Voltage Drop Calculator
Professional Industrial Electrical & NEC Compliance Suite
May 2026 · voltagedropcalculater.com · its alternatives →
17
SpecCalc Hub▲2
Free engineering calculators with transparent formulas
May 2026 · speccalchub.com · its alternatives →
18
LCOE Calculator with Comparison tools▲8
Calculator with complete guide -
2025 · ovatrix.com · its alternatives →
19
ElecCalc▲2
Australian Electrical Calculator App
Apr 2026 · eleccalc.au · its alternatives →
20
CI Suite Pro▲1
Free calculators for pump power, OEE, cable sizing and more
Aug 2026 · cisuitepro.com · its alternatives →
21
Volumetric Weight Calculator▲6
Free calculation of air freight chargeable weight
2025 · volumetricweightcalculator.com · its alternatives →
22
Energy Calculators▲5
Smart tools to calculate, compare ,optimize your power usage
Nov 2025 · energycalculator.blog · its alternatives →
23
I Love MEP▲1
And Yes! It is THAT Easy
Jul 2026 · ilovemep.com · its alternatives →
24
CalculatingHub▲11
I Built a Comprehensive Suite of Free Online Tools: 300+ Calculators, Converters, and Random Generators After months of coding and development, I'm excited to share my website offering a vast collection of free online calculators, unit converters, and random generators all in one place. This project was created to simplify everyday tasks and provide accurate tools for various needs. What You'll Find on My Site: Calculators: - Financial tools: ROI, APY, mortgage calculators - Business tools: Break-even, commission calculators - Mathematics: From basic to advanced functions - Health: BMI, BMR,…
2025 · calculatinghub.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →