Looking for a jCalc Alternative?
ECalPro gives you more calculators, more standards, and more languages — with a free tier that includes watermarked PDF reports.
ECalPro vs jCalc.net — Feature Comparison
| Feature | ECalPro | jCalc.net |
|---|---|---|
| Price | Free tier + Pro $29/mo | AU$265/year (free to calculate; paid reports) |
| Calculators | 24 | 16 |
| Standards | AS/NZS, BS 7671, IEC 60364, NEC, IEEE 1584, NFPA 780, and more | AS/NZS 3008 + 3000, IEEE 1584 |
| Languages | 23 | English only |
| Offline mode | Yes (PWA) | No |
| Cloud-based | Yes | Yes |
| Team / collaboration | Yes (4 roles, project sharing) | No |
| Mobile app | PWA (iOS + Android) | No |
| Free calculations/day | 5 | Unlimited (reports require paid) |
| PDF reports | Watermarked (free) / Clean (Pro) | Paid only |
| MV cable sizing | Yes (IEC 60287) | No |
| Arc flash method | IEEE 1584-2018 | IEEE 1584 (2018 + 2002) + Ralph Lee |
| Harmonics analysis | Yes | No |
| Cable pulling | Yes | No |
| PPP pricing | 42 countries | No |
| Motor / transformer calcs | Yes | Yes |
| Battery sizing | Yes | Yes |
| Automated tests | 24,217 | Not published |
Why Engineers Switch from jCalc to ECalPro
jCalc specialises in AS/NZS standards (plus IEEE 1584 arc flash). If you work on international projects or need BS 7671, IEC 60364, or NEC compliance, jCalc does not cover those standards. ECalPro supports 30+ standards across all major international codes, making it suitable for engineers working across borders or on projects governed by multiple regulatory frameworks.
jCalc is free to run calculations, and charges AU$265/year to save calculations, remove watermarks, and export PDF reports. ECalPro's free tier includes 5 calculations per day with watermarked reports, and for engineers in developing economies ECalPro offers purchasing power parity pricing in 42 countries.
jCalc has no team features. There is no project sharing, no role-based access control, and no collaboration workflow. ECalPro offers a 4-role team system (Owner, Admin, Engineer, Viewer) with shared projects and invitation-based access — essential for engineering firms with multiple staff members working on the same installation.
jCalc has no offline mode. ECalPro works offline via its Progressive Web App — a capability that matters for site engineers performing calculations in areas with poor or no internet connectivity. jCalc is also English-only, while ECalPro supports 23 languages with fully localised interfaces.
What jCalc Does Better
jCalc has genuine advantages that are worth acknowledging:
- Lower flat annual price — jCalc's AU$265/year (roughly US$175) is cheaper than ECalPro's annual Professional plan for single users who only need AS/NZS calculations.
- Ralph Lee arc flash method — a simpler alternative to IEEE 1584 useful for quick field assessments where detailed input data is unavailable.
- Unlimited calculations — jCalc does not limit the number of calculations per day on paid plans, while ECalPro's free tier is capped at 5/day.
- Longer track record in the Australian market — jCalc has been serving Australian engineers for longer and has established trust in the AS/NZS community.
- Dedicated motor, transformer, and generator quick calculators are well-refined and focused on practical Australian electrical installation scenarios.
ECalPro Features jCalc Doesn't Offer
- Offline PWA calculations (no internet required)
- 23-language interface with localised units
- PPP pricing in 42 countries
- White-label branded reports
- Custom report templates (Enterprise)
- Batch report generation
- Team RBAC with 4 roles and project sharing
- MV cable sizing per IEC 60287
- BS 7671, IEC 60364, and NEC standard support
- Harmonics analysis per IEEE 519
- Cable pulling tension calculations
- 24,217 automated tests across 5 layers
- Engineering Insights library (355+ articles)
Choose jCalc.net if:
Choose jCalc if you work exclusively within Australian standards, prefer unlimited calculations without a daily cap, want the lower flat annual price, or value a platform with a longer track record in the Australian market.
Choose ECalPro if:
Choose ECalPro if you need multi-standard support (especially BS 7671, IEC 60364, or NEC), work on international projects, need offline capability, work in a multilingual team, or need a free entry point to evaluate before committing.
Frequently Asked Questions
Is ECalPro a direct replacement for jCalc?
For AS/NZS cable sizing and voltage drop calculations, yes. ECalPro covers all AS/NZS 3008 calculations that jCalc offers, plus additional calculator types including cable pulling, solar PV, lightning protection, and harmonics — and adds BS 7671, IEC 60364, and NEC support.
Can I import my jCalc calculations into ECalPro?
Not directly — jCalc does not export calculation data in a portable format. You would need to re-enter inputs, but ECalPro's interface is designed for fast data entry with sensible defaults.
Is ECalPro free?
Yes, ECalPro has a permanent free tier with all 24 calculators, 5 calculations per day, and watermarked PDF reports. Professional plans start at $29/month with purchasing power parity discounts in 42 countries.
Does ECalPro support AS/NZS 3008.1.1:2025?
Yes. ECalPro's AS/NZS 3008 cable-sizing calculator uses the AS/NZS 3008.1.1:2025 current-carrying-capacity tables and clause references.
Start Your Free ECalPro Account
No credit card required. 5 free calculations per day. All 24calculators included.