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How-to guide

The real cost of church translation: professional interpreter vs AI

Josh Stannard

By Josh Stannard, Founder of Voco

Building practical live translation for churches. Updated June 25, 2026. 5 min read.

The question most church leaders ask before setting up live translation is simple: what will it cost? The honest answer depends on how you're currently doing it — or not doing it. This guide breaks down the numbers for professional interpreters and AI translation side by side, so you can make the right call for your congregation.

What a professional interpreter actually costs

Professional interpreters for religious settings in the UK typically charge between £150 and £400 per session, depending on language pair, location, and interpreter qualifications. Most church services run 60–90 minutes, but interpreters often charge a minimum of two hours. Add travel expenses for many languages, and the real cost is often at the higher end.

  • £150–400 per session for most European language pairs
  • £250–600+ for less common languages (Yoruba, Igbo, Tigrinya, Farsi)
  • Minimum 2-hour booking in most cases, even for a 75-minute service
  • Additional travel expenses for interpreters working outside major cities
  • Annual cost for weekly Sunday services: £7,800–£20,800 per language

The hidden costs of volunteer interpretation

Many churches rely on bilingual volunteers rather than professionals. This reduces direct cost but creates its own overhead that's easy to undercount.

  • Volunteer preparation time: sharing sermon notes, key themes, and unusual vocabulary each week
  • Coordination cost: finding someone available each Sunday, managing cover when they're away
  • Quality inconsistency: volunteer accuracy varies and is hard to monitor
  • Whispered interpretation strains the volunteer and limits attendee comfort
  • Only one or two languages covered — everyone else is left without

What AI translation costs

Voco's Starter plan is £24/month — covering one main weekly service, 1–2 regular language groups, and unlimited attendees. The Church plan is £48/month for multiple weekly services, all 200+ translated languages, AV overlays, and a small team. Neither plan requires a minimum contract.

Voco Starter is £24/month for one main weekly service and one or two regular language groups, with no attendee fee.

Making the case to your leadership team

The financial case is straightforward. The pastoral case is stronger. Translation is not just a cost-saving measure — it's a decision about who your church is for. If non-English-speaking members can't follow the sermon, they're attending a social gathering, not a church service. The question isn't whether you can afford translation. It's whether you can afford to keep running without it.

  • Annual cost of professional interpreter (one language, weekly): £7,800–£20,800
  • Annual cost of Voco Starter (1 service/week, up to 2 language groups): £228
  • Saving: £7,380–£20,380 per year
  • Voco covers 200+ languages simultaneously at no extra cost per language

Frequently asked questions

Is there a free trial?

Yes. Voco offers a 7-day free trial with no credit card required. You can run a live service during the trial to test it with your congregation before committing.

What happens if we go over our usage limit?

Voco's plans use soft guidance rather than hard cut-offs. Starter covers one main service per week with one or two regular language groups. Church covers multiple Sundays plus the odd midweek, all 200+ languages, and around 5 live hours/week guidance. If you consistently need more live time, regular midweek groups, or event weekends, Pro is the right tier.

Does AI translation replace interpreters for legal or medical contexts?

No. This guide is specifically about church sermon translation. For legal depositions, medical appointments, or asylum interviews, certified human interpreters are still required and appropriate.

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