SD-WAN Cost Calculator UK: Estimate Monthly Costs & Savings Quick answer
Use this SD-WAN cost calculator to estimate how much a UK business might pay for SD-WAN based on:
number of sites
SD-WAN licence cost
managed service fees
standard branch connectivity
leased line or DIA sites
4G or 5G backup
security requirements
hardware or appliance costs
installation costs
migration costs
contract length
current WAN or MPLS spend
The calculator estimates:
monthly SD-WAN licence cost
monthly managed service cost
monthly connectivity cost
monthly backup connectivity cost
monthly security cost
total monthly SD-WAN cost
estimated cost per site
annual recurring cost
one-off setup and hardware cost
estimated first-year cost
total contract value
possible monthly saving against your current WAN or MPLS spend
This is a guide only.
Actual SD-WAN costs vary by provider, site location, underlay connectivity, bandwidth, hardware, licence tier, managed support, security, 4G/5G backup, installation and contract length.
Use the calculator below, then compare SD-WAN quotes to check real provider pricing.
Compare SD-WAN Quotes
Free quotes • No obligation • Compare UK SD-WAN and managed network providers
How do we work?
Transparent, impartial, and data‑driven reviews made by a team of expert humans, never AI generated – here’s exactly how Compare Your Business Costs helps you find the best deals from trusted UK providers: click here
Authored by: Ally Cox (Business Technology & B2B Services Specialist 10+ Years’ Experience)
Reviewed by: James Ward (Telecoms Specialist, 12+ Years Experience)
Last Updated: August 2026
Your estimated WAN / SD-WAN costs
SD-WAN licence£0 per month
Managed service£0 per month
Connectivity£0 per month
Backup connectivity£0 per month
Security£0 per month
Estimated monthly SD-WAN cost£0 estimated recurring cost
Estimated cost per site£0 per month
Annual recurring cost£0 per year
One-off setup / hardware£0 estimated one-off cost
Estimated first-year cost£0 including setup
Total contract cost£0 over 36 months
Potential monthly saving£0 vs current spend
Your estimate will appear here.
Your recommended network setup will appear here.
This calculator provides an estimate only. Actual SD-WAN and WAN costs vary by provider, location, site count, bandwidth, connectivity availability, leased line pricing, licence tier, hardware, security, managed support, mobile backup, installation, contract length and network complexity.
What the calculator results mean SD-WAN licence
This estimates the monthly licence or platform cost across your selected number of sites which can include:
SD-WAN software
traffic routing
application visibility
policy control
central management
vendor platform access
Check whether your quote includes all features or whether higher licence tiers are required.
Managed service
This estimates the monthly cost of provider support and network management, which can include:
monitoring
troubleshooting
reporting
support desk
service reviews
change requests
supplier coordination
Managed SD-WAN usually costs more than self-managed SD-WAN, but it can reduce internal IT workload.
Connectivity
This estimates the monthly cost of the physical connections used by standard sites and dedicated-circuit sites, which is often one of the biggest parts of the total SD-WAN budget.
Backup connectivity
This estimates the monthly cost of 4G or 5G backup for sites that need resilience.
A backup connection can be useful where a broadband outage would stop payments, bookings, calls or core operations.
Security
This estimates the monthly cost of managed firewall, secure SD-WAN, SASE or other security features.
A low SD-WAN quote may not include enough security.
Estimated monthly SD-WAN cost
This is the estimated recurring monthly cost for your SD-WAN setup and should be compared against your current WAN, MPLS, broadband, leased line and support spend.
Estimated cost per site
This helps you compare providers fairly – a provider with a lower total monthly cost may not be better if key services are missing.
Annual recurring cost
This is the estimated yearly cost before one-off setup or hardware costs.
One-off setup and hardware cost
This includes upfront costs such as appliances, routers, installation and migration.
Estimated first-year cost
This combines annual recurring cost with one-off setup and hardware costs.
This is useful because the first year is often more expensive than the following years.
Estimated total contract cost
This estimates the full cost across your selected contract length – always compare total contract value, not just monthly rental.
Potential monthly saving
This compares your estimated SD-WAN monthly cost against your current WAN or MPLS monthly cost.
A positive saving suggests SD-WAN could reduce monthly spend.
A negative saving suggests SD-WAN may cost more, but could still be worth it if resilience, support, security or performance improves.
What affects the calculator estimate? The biggest factors are:
number of sites
SD-WAN licence cost
managed service cost
access connection type
leased line or DIA sites
backup sites
4G/5G data allowance
security requirement
hardware cost
installation cost
migration cost
contract length
current WAN or MPLS cost
support hours
provider pricing
postcode-level availability
cloud application usage
VoIP needs
payment-system resilience
business-critical systems
existing contract terms
The calculator should be used as a planning tool, not a final quote.
SD-WAN calculator vs SD-WAN cost guide
Page Purpose
SD-WAN Cost Calculator
Estimate costs using your own site and network inputs
SD-WAN Costs UK
Understand SD-WAN pricing, cost components and examples
Managed SD-WAN Services
Compare provider-managed SD-WAN support
SD-WAN Providers UK
Compare provider routes and commercial options
SD-WAN vs MPLS
Decide whether to keep, replace or combine MPLS
SD-WAN Solutions
Choose the right solution type
Why use an SD-WAN calculator before comparing quotes? An SD-WAN calculator helps you prepare for provider conversations which can help you estimate:
how site count affects cost
whether leased lines are needed everywhere
whether FTTP or broadband is enough for some branches
how much managed support adds
how much security adds
whether 4G/5G backup is worth budgeting for
how contract length affects total spend
whether SD-WAN may reduce current MPLS or WAN spend
It also helps you avoid comparing incomplete quotes – one provider may include hardware, support and security, while aother may quote only the SD-WAN licence.
The cheapest-looking quote may not be the best value.
How to reduce SD-WAN costs after using the calculator You could be able to reduce SD-WAN costs by:
using leased lines only at critical sites
using FTTP where performance is good enough
adding 4G/5G backup only where downtime matters
avoiding unnecessary licence tiers
avoiding SASE if secure SD-WAN is enough
removing unused MPLS circuits gradually
using standard hardware across branches
comparing managed and self-managed options
timing rollout around existing contract end dates
piloting before full rollout
bundling connectivity and management where it improves value
comparing 24, 36 and 60-month contract terms
The aim is not always the lowest cost.
The aim is the right balance of cost, resilience, security and support.
What to check before accepting an SD-WAN quote After using the calculator, ask providers:
what is the total monthly cost per site?
what is included in the SD-WAN licence?
is this managed or self-managed?
is hardware included?
is installation included?
is security included?
is SASE included or separate?
is 4G or 5G backup included?
what data allowance is included?
what connectivity is included at each site?
which sites need leased lines or DIA?
which sites can use FTTP or broadband?
are current circuits reused?
can MPLS be retained during migration?
what is the support model?
what monitoring is included?
what reports are included?
are change requests included?
what happens if a site goes down?
how is failover tested?
what is the contract length?
what are the exit fees?
what is the total contract value?
Common SD-WAN calculator mistakes Avoid these mistakes:
entering only the SD-WAN licence and ignoring connectivity
forgetting managed service fees
forgetting firewall or security costs
assuming SASE is included
adding leased lines to every site without checking need
ignoring 4G/5G data costs
forgetting one-off appliance costs
forgetting installation or project fees
not adding current WAN or MPLS spend
comparing first-year cost against monthly cost
ignoring contract length
assuming savings are guaranteed
ignoring support hours
not allowing for migration risk
using the same cost assumptions for every branch
The calculator is most useful when your inputs reflect how the network will actually be designed.
Compare SD-WAN Quotes
Free quotes • No obligation • Compare UK SD-WAN and managed network providers
FAQs: SD-WAN cost calculator UK
What is an SD-WAN cost calculator?
An SD-WAN cost calculator estimates likely SD-WAN costs using inputs such as site count, licence fees, managed service fees, connectivity, backup, security, hardware and contract length.
How accurate is an SD-WAN calculator?
It provides an estimate only. Actual pricing depends on provider, location, site count, bandwidth, connectivity availability, hardware, security, support and contract terms.
What should I include in an SD-WAN cost estimate?
Include licences, managed service, hardware, connectivity, leased lines, 4G/5G backup, security, installation, migration and support costs.
Is SD-WAN priced per site?
SD-WAN is often priced per site, per appliance, per licence tier or by bandwidth. Managed support and security may add extra costs.
What is the biggest SD-WAN cost?
The biggest cost is often connectivity, managed support or security rather than the licence alone.
Does SD-WAN replace leased lines?
No. SD-WAN can use leased lines as part of the network. It does not replace the need for physical connectivity.
Does SD-WAN replace MPLS?
Sometimes. SD-WAN can reduce or replace MPLS for some businesses, but many use a hybrid SD-WAN/MPLS model during migration.
Should I include current WAN or MPLS costs?
Yes. Adding your current monthly WAN or MPLS cost helps estimate whether SD-WAN could reduce monthly spend.
Does SD-WAN always save money?
No. SD-WAN may save money if it reduces MPLS dependency, but costs can rise if you add managed support, security, leased lines, backup or SASE.
What is a good SD-WAN cost per site?
A good cost per site depends on the business need. A small branch over FTTP will cost less than a critical site with a leased line, SASE and 4G/5G backup.
Should every site have a leased line?
Not always. Critical sites may need leased lines, while lower-risk branches may use FTTP, broadband or 4G/5G backup.
Should every site have 4G or 5G backup?
Not always. Backup is most useful where downtime affects trading, payments, care systems, bookings, VoIP or customer service.
What is the difference between SD-WAN cost and managed SD-WAN cost?
SD-WAN cost may refer only to licences or appliances. Managed SD-WAN cost includes provider support, monitoring, reporting and management.
What is the difference between this calculator and the SD-WAN cost guide?
The calculator estimates costs using your inputs. The SD-WAN cost guide explains pricing, cost components, examples and buying advice in more depth.
How do I compare SD-WAN quotes after using the calculator?
Compare site-by-site pricing, licence tiers, hardware, connectivity, security, managed support, backup, installation, contract length and total contract value.
Related SD-WAN and WAN guides
SD-WAN Managed SD-WAN Services https://compareyourbusinesscosts.co.uk/managed-wan-services
SD-WAN Costs UK https://compareyourbusinesscosts.co.uk/sd-wan-costs
SD-WAN vs MPLS https://compareyourbusinesscosts.co.uk/sd-wan-vs-mpls
SD-WAN Solutions https://compareyourbusinesscosts.co.uk/sd-wan-solutions
What is SD-WAN? https://compareyourbusinesscosts.co.uk/what-is-sd-wan
WAN and multi-site connectivity WAN Providers UK https://compareyourbusinesscosts.co.uk/wan-providers-uk
Managed WAN Services https://compareyourbusinesscosts.co.uk/managed-wan-services
Business Connectivity Solutions https://compareyourbusinesscosts.co.uk/business-connectivity-solutions
Multi-Site Connectivity https://compareyourbusinesscosts.co.uk/multi-site-connectivity
Cloud Connectivity https://compareyourbusinesscosts.co.uk/cloud-connectivity
Connectivity and alternatives Leased Line Costs UK https://compareyourbusinesscosts.co.uk/leased-line-costs
Leased Line Providers UK https://compareyourbusinesscosts.co.uk/leased-line-providers
Dedicated Internet Access https://compareyourbusinesscosts.co.uk/dedicated-internet-access
MPLS Networks Explained https://compareyourbusinesscosts.co.uk/mpls
Business Internet Security https://compareyourbusinesscosts.co.uk/business-internet-security
Compare SD-WAN Providers
Compare SD-WAN providers based on your number of sites, current connectivity, cloud applications, security needs, support requirements, failover needs and total monthly cost.
Free quotes • No obligation • Compare UK managed network providers
Compare SD-WAN Quotes
Hi, I’m Ally Cox , a senior copywriter and blogger at CompareYourBusinessCosts.co.uk, the UK’s trusted platform for comparing business services.over a decade of experience in the B2B sector, I specialise in simplifying complex topics like leased lines, VoIP, business energy, HR and payroll solutions, accounting software, and EPOS systems .HR, copywriting, and business operations- from clocking-in systems to card machines and office technology .informed, confident decisions when choosing products and services that improve efficiency and save money.