Simple, Transparent Pricing

Start free. Upgrade when you need to deliver professional reports to clients.

Free

For engineers exploring Voltcal

$0forever
  • All 26 calculators
  • All standards (IEC, NEC, IS, BS, AS/NZS)
  • Unlimited calculations
  • Basic results view
  • PDF calculation reports
  • Save & organise projects
  • Company logo on reports
  • Share calculation links
  • SLD Builder
  • Load Schedule & Cable Schedule
  • Team workspace
  • API access
Most Popular

Pro

For practicing engineers who deliver to clients

$19/month
  • All 26 calculators
  • All standards (IEC, NEC, IS, BS, AS/NZS)
  • Unlimited calculations
  • PDF calculation reports
  • Company logo on reports
  • Save & organise projects
  • Revision history
  • Share calculation links
  • SLD Builder (drag & drop + auto)
  • Load Schedule & Cable Schedule
  • Team workspace
  • API access

Team

For engineering teams and consultancies

$49/month
  • Everything in Pro
  • 5 team seats
  • Shared project workspace
  • Team calculation library
  • Admin controls & roles
  • Shared PDF templates
  • Priority email support
  • API access
  • White-label

Enterprise

For large EPC firms and enterprises

$199/month
  • Everything in Team
  • Unlimited team seats
  • API access
  • White-label option
  • Custom standards & templates
  • SSO / SAML
  • Dedicated account manager
  • SLA guarantee

Frequently Asked Questions

Is the free tier really free forever?

Yes. All 26 calculators with all global standards are free, forever, with no usage limits. We monetise through PDF reports and project management features.

Can I cancel anytime?

Yes. Cancel anytime from your billing settings. You keep access until the end of your billing period. No cancellation fees.

Are the calculations accurate?

Yes. All calculations are built by a practicing electrical engineer with 17 years of industrial plant design experience, referenced to exact standard clauses (IEC, NEC, IEEE, NFPA).

What standards are supported?

IEC 60364, NEC (NFPA 70), IS (Indian Standard), BS 7671, and AS/NZS 3000. All free to use.

Can I use this for client deliverables?

Pro PDF reports include methodology, standard references, and your company logo — suitable for client submissions. Always have a qualified engineer review before submitting to authorities.

Do you offer discounts for students or institutions?

Yes. Contact us at support@voltcal.com for educational pricing.