All ComparisonsPRODUCT COMPARISON
ECalPro vs jCalc: Which Electrical Calculator Fits Your Workflow?
jCalc is a well-established, AS/NZS-focused calculator trusted by Australian engineers for over a decade, and supports both the 2017 and 2025 editions of AS/NZS 3008 with free DC cable sizing. ECalPro complements deep AS/NZS 3008.1.1:2025 support with multi-standard breadth (BS 7671, IEC 60364, NEC/NFPA 70), 23 languages, XLSX/DOCX reports, and PPP pricing across 42 countries.
Try ECalPro FreeKey Differences
Multi-standard vs AS/NZS focus
BS 7671, IEC 60364, NEC — beyond AS/NZS & IEEE 1584.
24 vs 16 calculators
Cable pulling, solar PV, lightning, harmonics, and more.
PDF + XLSX + DOCX
Export in three formats vs PDF only.
23 languages
Interface in your language. Engineering units stay universal.
Feature-by-Feature Comparison
| Feature | ECalPro | jCalc.net |
|---|---|---|
| AS/NZS 3008 edition | 2025 (latest) + 2017 | 2017 + 2025 (AU) |
| Standards supported | 30+ standards & national codes | AS/NZS 3008 + 3000 + IEEE 1584 |
| Calculator modules | 24 modules | 16 modules |
| Arc flash (IEEE 1584-2018) | Full implementation | IEEE 1584 (2018 + 2002) + Ralph Lee |
| Battery / UPS sizing | Yes | Yes (battery sizing) |
| Short circuit / fault current | Full IEC 60909 implementation | Transformer / generator fault current |
| Cable pulling tension | Full bidirectional analysis | No |
| Report export | PDF, XLSX, DOCX | PDF only |
| Multi-language support | 23 languages | English only |
| Automated test coverage | 24,000+ tests | Not published |
| Methodology transparency | Every equation + clause shown | Step-by-step with table references |
| PPP pricing (42 countries) | Yes | No (flat A$265/yr) |
| NEC/NFPA 70 support | Full (Article 310, 240, etc.) | No |
| BS 7671 support | Full (Appendix B tables, Reg 525) | No |
| Free to calculate | Yes — 5/day, watermarked PDF | Yes — unlimited; paid for PDF & saving |
| Starting price | $29/mo (~US$348/yr) | A$265/yr (~US$175/yr) |
Standards Coverage in Detail
Both tools handle AS/NZS 3008 cable sizing well. The difference shows when you need BS 7671 for a UK project, NEC for a US client, or IEEE 1584 for an arc flash study.
| Standard | ECalPro | jCalc |
|---|---|---|
| AS/NZS 3008.1.1:2025 (latest) | ||
| AS/NZS 3008.1.1:2017 | ||
| AS/NZS 3000:2018 | ||
| BS 7671:2018+A2 | ||
| IEC 60364-5-52 | ||
| NEC/NFPA 70:2023 | ||
| IEEE 1584:2018 | ||
| IEC 60909-0 |
When jCalc Makes Sense
- 100% AS/NZS-only work — if you never leave Australian/NZ standards, jCalc has proven reliability
- Established workflow — your team already uses jCalc and switching cost outweighs benefits
When ECalPro Is the Better Choice
- AS/NZS 3008.1.1:2025 support — the cable-sizing calculator uses the 2025 edition’s current-carrying-capacity, depth, soil, grouping and ambient tables and clause references
- Multi-standard projects — switch between AS/NZS, BS, IEC, and NEC in one tool. Try cable sizing with any standard
- Arc flash analysis — IEEE 1584-2018 calculator with full incident energy, PPE category, and boundary calculations
- Engineers outside Australia/NZ — UK engineers need BS 7671, US engineers need NEC, international projects need IEC
- Excel + Word reports — export calculations as XLSX for integration with project spreadsheets, or DOCX for design reports
- Budget-conscious firms — free tier with all calculators, PPP pricing for developing nations, no A$265/year minimum
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Frequently Asked Questions
How does ECalPro differ from jCalc?
The biggest difference is standards coverage. jCalc focuses on AS/NZS standards (AS/NZS 3008 and AS/NZS 3000) plus IEEE 1584 arc flash, making it well-suited for Australian/New Zealand engineers. ECalPro adds multi-standard breadth — BS 7671, IEC 60364, NEC, and more national codes — with full clause references, making it suitable for engineers working on international projects or under UK/US/European standards.
Is ECalPro as accurate as jCalc for AS/NZS calculations?
Yes. ECalPro's AS/NZS 3008 implementation uses the same source tables (Tables 3-42) with full derating factor lookups. Our calculation engine has 24,000+ automated tests, many cross-validated against jCalc reference results. Both tools follow the same standard methodology and show intermediate steps — ECalPro's additions are multi-standard coverage (BS 7671, IEC 60364, NEC), 23 languages, and XLSX/DOCX reports.
Does jCalc support AS/NZS 3008.1.1:2025?
Yes — jCalc added AS/NZS 3008.1.1:2025 support (Australian conditions) in 2026, alongside the 2017 edition. ECalPro's cable-sizing calculator also uses the AS/NZS 3008.1.1:2025 edition. (New Zealand's 2025 edition has not yet been published by Standards New Zealand, so no vendor offers NZ-2025 yet.)
Can I use jCalc results to validate ECalPro?
Absolutely, and we encourage it. For AS/NZS cable sizing calculations, you can run the same scenario in both tools and compare. Our test suite includes fixtures derived from published jCalc reference data to ensure parity.
Does ECalPro support AS/NZS 3000 maximum demand?
Yes. ECalPro implements maximum demand calculations per AS/NZS 3000:2018, including diversified loads, specific appliance demand factors, and the AS/NZS methodology for residential and commercial installations.
Why should an Australian engineer consider ECalPro over jCalc?
If you only ever work to AS/NZS standards, jCalc is a solid, well-established choice. But if you also handle projects under BS 7671 (common for engineers working with UK clients), IEC 60364 (international projects), or NEC (US projects), ECalPro lets you do everything in one tool. Plus, cable pulling, solar PV, lightning protection (IEC 62305), and harmonics analysis are available in the same platform.
Comparison accurate as of April 2026. jCalc features and pricing may have changed since this page was last updated. We encourage you to verify on jcalc.net.
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