International Calling Guide

How to Call India from UK Cheaply in 2026

The UK is home to over 1.8 million people of Indian heritage — one of the largest Indian diaspora communities in the world. Whether you're in London, Birmingham, Leicester, or Manchester, keeping in touch with family and friends in India is a daily priority. This guide ranks every calling option available in 2026 by cost and convenience.

Updated: May 4, 2026·10 min read·By Voizly Editorial
Call India from UK — London skyline with digital connection to India

Quick Answer

The cheapest way to call India from the UK is via a VoIP app like Voizly at ~3p/min ($0.04/min). That's around 7x cheaper than BT's standard international rate (~20p/min) and cheaper than most calling cards. Credits never expire.

UK to India Calling: Cost Comparison 2026

MethodCost (GBP)No SIM NeededAny NumberCall Quality
VoIP App (Voizly)~3p/min✓✓HD
BT (standard)~20p/min✓✓Good
EE / O2 / Vodafone~15–25p/min✓✓Good
WhatsApp / FaceTimeFree✓✗Variable
Calling Cards~2–6p/min✓✓Average
Rebtel~4–6p/min✓✓Good

1. VoIP Apps — Cheapest Per-Minute Option

VoIP (Voice over Internet Protocol) apps send your call over the internet, skipping the traditional international phone network. This eliminates the expensive routing costs that UK carriers pass on to customers. The result: HD-quality calls at a fraction of BT or EE rates.

Voizly charges $0.04/min (approx. 3p/min) to any Indian mobile or landline. No subscription, no monthly fee — just pay-as-you-go credits that never expire. A £4 pack gives you over an hour of calls to India.

Voizly — Why It Works for UK-Based Indian Diaspora

  • ✓ Calls any Indian mobile or landline — no app needed at the India end
  • ✓ ~3p/min to India (vs 20p/min on BT)
  • ✓ Credits never expire — perfect for irregular callers
  • ✓ Works over home broadband, office Wi-Fi, or UK mobile data
  • ✓ Pay in USD — no currency conversion fees for GBP users
  • ✓ iOS and Android apps available on the UK App Store and Google Play
View Credit Packs — Starting at $4.99

Credits never expire · No subscription

2. BT, EE, O2, and Vodafone — Standard Carrier Rates

UK carrier standard rates for calling India in 2026:

  • BT: ~15–25p/min to Indian mobiles. Some "International Saver" add-ons reduce this to ~5p/min.
  • EE: International calls included in some unlimited plans, otherwise ~25p/min.
  • O2: ~20–25p/min standard, or add a monthly international bundle.
  • Vodafone: ~20p/min or included in some premium plans.
  • Three: Often includes international minutes to India in some Go Roam plans.

If you're already on Three or have an international bundle, it might be cost-effective. Otherwise, VoIP at ~3p/min is far more economical for regular India callers.

Sources: BT international rates, EE international rates. Rates checked May 2026.

3. Calling Cards — Old but Still Available

Calling cards available in corner shops and Indian grocery stores across the UK can offer competitive rates to India (often 2–6p/min). The limitations: cards have expiry dates (typically 30–90 days), connection fees per call, and you need to dial an 0844/0845 access number first. For occasional callers, a £5 card can work. For regular callers, a VoIP app is simpler and often cheaper overall.

4. WhatsApp and FaceTime — Free When Both Are Online

WhatsApp is extremely popular in India, making it a practical option for many UK residents. Free video and voice calls work well over a good Wi-Fi connection. The caveat: your contact in India needs to be on WhatsApp, have the app open, and be connected to data or Wi-Fi. For calling elderly relatives or Indian businesses, a direct-dial VoIP service is more reliable.

How to Dial India from the UK

To call an Indian mobile directly from a UK phone, dial: 00 91 [10-digit Indian number]. The UK international dialling prefix is 00, and India's country code is +91.

Format:00 + 91 + [10-digit mobile]
Example:To call +91 98765 43210 → dial 00 91 9876543210
On mobile:Press and hold 0 for +, then dial +91 9876543210

Indian mobile numbers are 10 digits and start with 6, 7, 8, or 9. If the number starts with 0 (e.g. 098765…), drop the leading 0 — it's not part of the mobile number. Using Voizly? Just enter the 10-digit Indian number directly in the app — no country prefix needed.

UK–India Time Difference

Winter (GMT)
+5:30 hrs
India is 5h 30m ahead
9 AM London → 2:30 PM India
Summer (BST)
+4:30 hrs
India is 4h 30m ahead
9 AM London → 1:30 PM India

India does not observe daylight saving time. IST is fixed at UTC+5:30 year-round.

How Much Can You Save?

7×
Cheaper than BT
~3p vs ~20p/min
£17/mo
Monthly saving
At 1 hr/week, BT vs Voizly
Never
Credits expire
No pressure to use up credits

Voizly Rates: UK to India and Other Countries

DestinationCredits / minApprox. USD
🇮🇳India1 cr$0.04
🇬🇧UK (local)1 cr$0.04
🇺🇸USA1 cr$0.04
🇩🇪Germany2 cr$0.08
🇫🇷France2 cr$0.08

See full per-destination rates →

Getting Started — 4 Steps

  1. 1
    Download Voizly
    Free on the App Store and Google Play. Available in the UK.
  2. 2
    Sign up
    Register with your mobile number. Takes under a minute.
  3. 3
    Buy credits
    Starting from $4.99 for 30 credits. Pay securely by card.
  4. 4
    Dial India
    Enter +91 followed by the 10-digit Indian mobile number and call.

Frequently Asked Questions

What is the cheapest way to call India from the UK?
The cheapest way to call India from the UK is via a VoIP app like Voizly at $0.04/min (≈ 3p/min). This is significantly cheaper than BT (~20p/min), EE (~25p/min), or O2 rates for international calls to India.
How much does BT charge to call India?
BT charges approximately 15–25p per minute to call Indian mobiles on standard plans. Some BT add-on packages include international minutes at a monthly fee. Using VoIP like Voizly works out to around 3p/min — about 7x cheaper.
Can I call India for free from the UK?
WhatsApp and FaceTime calls are free between app users. However, to call any Indian phone number directly without the recipient having a smartphone or app, a VoIP service like Voizly at $0.04/min is the most practical option.
Do Voizly credits expire?
No. Voizly credits never expire. You can buy credits today and use the leftover balance months later without losing them. There is no subscription or monthly fee.
What is the time difference between UK and India?
India Standard Time (IST) is UTC+5:30. The UK is on GMT (UTC+0) in winter and BST (UTC+1) in summer. India is therefore 5 hours 30 minutes ahead of the UK in winter, and 4 hours 30 minutes ahead in summer.
Can I use Voizly on a UK SIM or mobile data plan?
Yes. Voizly works over any internet connection — your home broadband, office Wi-Fi, or any UK mobile data plan (EE, O2, Vodafone, Three, etc.). It does not interact with your UK carrier; the call is routed over the internet.
Is Voizly available on Android and iPhone in the UK?
Yes. Voizly is available on the App Store and Google Play and can be downloaded in the UK. You can create an account and start calling India within minutes.

Related Guides

Reference
India Country Code +91 — Dialing Guide
Calling Guide
How to Call India from USA
Calling Guide
How to Call India from UAE
Full Guide
How to Call Without a SIM Card

Call India for ~3p/min from the UK

7x cheaper than BT. Credits never expire. Works over Wi-Fi or any UK mobile data plan.

Buy Credits — Starting at $4.99

Credits never expire · No monthly fee