Alternatives

Products that do what HVAC Admin does

Free tools & knowledge hub for HVAC techs

1. 1
   HVAC Tools Hub▲4

   Free HVAC calculators and practical reference tools

   Aug 2026 · hvactoolshub.com

2. 2
   FieldCalc HVAC▲8

   Offline HVAC calculator: R-454B PT, superheat, duct, load

   Jul 2026 · apps.apple.com

3. 3
   TradeHub Tools▲1

   Free NEC Electrical and HVAC Field Calculators

   May 2026

4. 4
   HVAC Logic▲2

   client-side HVAC & thermodynamic calculation suite

   13d ago · hvaclogic.org

5. 5
   Tonnage Calculator AC▲2

   Find the Right AC Size & BTU Needs

   Jun 2026 · tonnagecalculatorac.com

6. 6
   RefriPro▲1

   Offline PT charts,error codes,service reports for HVAC techs

   Mar 2026 · play.google.com

7. 7
   HomeCalc Pro▲2

   The ultimate mathematical toolkit for home projects.

   27d ago · homecalcpro.net

8. 8
   EstimateKit▲7

   Professional HVAC estimates in 10 minutes, not 2 hours.

   Nov 2025

9. 9
   FlatRateKit▲1

   Free HVAC flat-rate pricing calculators for small shops

   21d ago · flatratekit.com

10. 10
    HowMuchWatts▲5

    50 free calculators for home energy costs & savings

    Jul 2026 · howmuchwatts.com

11. 11
    Energy Calculators▲5

    Smart tools to calculate, compare ,optimize your power usage

    Nov 2025

12. 12
    Trade Tools - Free tool for Construction▲3

    Pipe, concrete, electrical & tile calculators — free

    May 2026 · pipesizecalculator.com

13. 13
    I Love MEP▲1

    And Yes! It is THAT Easy

    Jul 2026 · ilovemep.com

14. 14
    TradeVan▲6

    Offline-first HVAC software for small service teams

    Jul 2026 · tradevan.app

15. 15
    R-Pro▲2

    AI field app for HVAC techs. Offline. 10 languages.

    May 2026 · r-pro.app

16. 16
    FreeWWW Engineering Calculator Suite▲3

    Twenty-two calculators for everyday engineering problems

    Jul 2026 · freewww.com

17. 17
    ToolBullet▲3

    21 free utility tools. No sign up. Just works

    May 2026 · toolbullet.com

18. 18
    MeasureShed▲2

    Measure it. Price it. Build it.

    Jul 2026 · measureshed.com

19. 19
    Workcase▲5

    HVAC Software Service

    Jan 2026 · workcase.co

20. 20
    CLIMAPARTS▲3

    B2B marketplace for HVAC electronic control boards

    Jul 2026 · climaparts.app

21. 21
    ServiceMag Diagnostic Wizard▲2

    Diagnose appliance & HVAC repairs free, with cost estimates

    Jun 2026 · servicemag.org

22. 22
    Service Pricing Tool▲4

    Free calculators for local service costs

    Jun 2026 · servicepricingtool.com

23. 23
    ParttoGo | Industrial Tool▲3

    Open-source calculators for automation engineers

    Jul 2026 · parttogo.com

24. 24
    LCOE Calculator with Comparison tools▲8

    Calculator with complete guide -

    Oct 2025

Ranked by how close each launch is in meaning, then by votes. Refine with a description →