All ComparisonsPRODUCT COMPARISON
ECalPro vs jCalc: Which Electrical Calculator Fits Your Workflow?
jCalc is a well-established tool for Australian electrical engineers. ECalPro expands the scope to 30+ standards & national codes, 27 calculator modules, and 23 languages — now updated for AS/NZS 3008.1.1:2025 with DC cable sizing support, while jCalc remains on the 2017 edition (as of April 2026).
Try ECalPro FreeKey Differences
30+ vs 2-3 standards
AS/NZS, BS, IEC, NEC, IEEE — all in one platform.
27 vs ~15 calculators
Arc flash, cable pulling, battery/UPS, 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| AS/NZS 3008 edition | 2025 (latest) + 2017 | 2017 (outdated) |
| DC cable sizing (solar/battery) | AS/NZS 3008:2025 DC tables | Not supported |
| Edition comparison mode | 2017 vs 2025 side-by-side | Single edition only |
| Standards supported | 7 (AS/NZS, BS, IEC, NEC, IEEE) | 2-3 (primarily AS/NZS, some IEC) |
| Calculator modules | 27 modules | ~15 modules |
| Arc flash (IEEE 1584-2018) | Full implementation | Limited |
| Battery/UPS (IEEE 1185) | Yes | No |
| Short circuit (IEC 60909) | Full implementation | Partial |
| Cable pulling (IEEE 1185) | 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 | Results summary |
| PPP pricing (42 countries) | Yes | No |
| NEC/NFPA 70 support | Full (Article 310, 240, etc.) | No |
| BS 7671 support | Full (Appendix B tables, Reg 525) | Limited |
| Free tier | Yes (all calculators) | Limited trial |
| Starting price | $29/month | A$265/year |
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 — updated for the latest edition with DC cable sizing, revised derating factors, and 2017 vs 2025 comparison mode
- 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 primarily on AS/NZS and some IEC standards, making it well-suited for Australian/New Zealand engineers. ECalPro supports 30+ standards and national codes (AS/NZS 3008, BS 7671, IEC 60364, NEC, CEC, DIN VDE, IS 732, and more) 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 — the difference is that ECalPro shows every intermediate step and supports the 2025 edition.
Does jCalc support AS/NZS 3008.1.1:2025?
As of April 2026, jCalc.net still references the 2017 edition of AS/NZS 3008.1.1. ECalPro supports both the 2017 and 2025 editions with a side-by-side comparison mode, plus dedicated DC cable sizing tables from the 2025 edition. Check jCalc's website for their latest update status.
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 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, arc flash analysis (IEEE 1584-2018) and cable pulling (IEEE 1185) are available without additional software.
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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