Cloud Migration Cost Estimator
Estimate the total cost of migrating your on-premise infrastructure to Microsoft Azure - including compute, storage, databases, migration labour, and ongoing monthly running costs.
Enter Your Infrastructure Details
Azure VM Sizes & UK South Pricing
| VM Size | vCPUs | RAM (GB) | Category | ~Monthly (Pay-As-You-Go) |
|---|---|---|---|---|
| B2s | 2 | 4 | Burstable | £30 |
| B4ms | 4 | 16 | Burstable | £110 |
| D2s v5 | 2 | 8 | General Purpose | £80 |
| D4s v5 | 4 | 16 | General Purpose | £160 |
| D8s v5 | 8 | 32 | General Purpose | £320 |
| D16s v5 | 16 | 64 | General Purpose | £640 |
| E2s v5 | 2 | 16 | Memory Optimised | £95 |
| E4s v5 | 4 | 32 | Memory Optimised | £190 |
| F2s v2 | 2 | 4 | Compute Optimised | £55 |
| F4s v2 | 4 | 8 | Compute Optimised | £110 |
Prices are approximate Azure UK South pay-as-you-go list prices for Linux VMs, excluding VAT. Windows adds approximately 30%. Storage, networking, and backup costs are additional. Prices as of 2025. View our Azure solutions
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Frequently asked questions
Costs vary hugely by scale, but a small-to-mid-sized UK business migrating a handful of servers and associated storage typically spends £5,000 to £25,000 on migration services, before ongoing monthly Azure consumption costs. Complex environments with legacy applications requiring re-architecting can push costs significantly higher.
Key drivers are the number of servers and applications being moved, whether applications need re-architecting for the cloud versus a straight lift-and-shift, data volume, and how much downtime the business can tolerate during cutover. Compliance requirements and staff training needs also add to overall migration cost.
Lift-and-shift is generally cheaper and faster upfront since applications move largely unchanged, but it often misses cost and performance benefits that come from redesigning workloads for cloud-native services. Many organisations start with lift-and-shift then re-architect specific high-value applications later once they are comfortable in Azure.
Beyond the one-off migration project cost, expect ongoing monthly charges for compute, storage, networking, and backup, which typically range from a few hundred to several thousand pounds a month depending on scale. This estimator breaks down both the upfront migration cost and the recurring Azure spend to expect.
