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WAF installation guide

Azure Application Gateway WAF Pricing Calculator

Estimate Azure Application Gateway WAF_v2 cost from gateway hours, capacity units, processed data, diagnostics, networking, and operations.

Quick answer

How to use this Azure Application Gateway WAF Pricing Calculator guide

Estimate Application Gateway WAF_v2 as a regional delivery architecture: fixed gateway hours, capacity-unit hours, processed data, diagnostics, networking, and operating effort. Use staged metrics and Cost Management to replace forecast assumptions.

Difficulty
Intermediate
Time
30-60 minutes for an Azure cost model
Updated
2026-08-07

Guide data

Difficulty
Intermediate
Time
30-60 minutes for an Azure cost model
Updated
2026-08-07
Use case
Useful when a team needs an Azure Application Gateway WAF pricing calculator or a reviewable WAF_v2 budget before deployment or scale testing.

Prerequisites

  • The target Azure region, Application Gateway tier, and required environments.
  • A traffic forecast or representative Application Gateway metrics.
  • The current regional Application Gateway and Azure Monitor pricing inputs.
  • Diagnostic retention, networking, support, and operating assumptions.

Interactive cost model

Application Gateway WAF_v2 monthly cost worksheet

Enter current regional rates from Microsoft. Each subtotal is quantity multiplied by rate; the result is a planning estimate and does not replace Azure Cost Management or a Microsoft quote.

The calculator runs locally in this page and does not submit or store the values you enter.

WAF_v2 gateway hours

Count fixed operating hours across every deployed Application Gateway WAF_v2 instance.

0.00 USD

Capacity unit hours

Use observed or forecast capacity units for the target workload and autoscaling range.

0.00 USD

Processed data

Enter the billable processed-data quantity using the current regional pricing definition.

0.00 USD

Diagnostic ingestion

Estimate WAF and access-log ingestion into Log Analytics or the selected destination.

0.00 USD

Networking and retention

Enter the monthly public IP, network, egress, retention, alerting, or export budget that applies.

0.00 USD

Security operations

Estimate policy review, exclusions, certificate work, incident analysis, and rollback drills.

0.00 USD
Estimated monthly total0.00 USD

Estimate boundaries

  • Use the Microsoft pricing page for the selected Azure region, currency, tier, and billing agreement.
  • Capacity-unit consumption changes with throughput, connections, compute work, rules, and scaling behavior; this worksheet does not predict those metrics automatically.
  • Taxes, support, reservations, credits, enterprise discounts, Front Door, and unrelated Azure services are outside the total unless entered as a budget line.
  • Replace forecast values with Cost Management and metric observations after a representative staged period.

Deployment workflow

Calibrate capacity and diagnostics with staged Azure metrics.

1

Fix the region, tier, and architecture boundary

Application Gateway pricing is region- and tier-sensitive. Confirm WAF_v2, the target region, zone requirements, public or private frontend design, backend topology, and whether Front Door is also present before entering rates.

  • The estimate names one Azure region and tier.
  • Development, staging, disaster recovery, and production gateways are counted.
  • Front Door and Application Gateway costs are not accidentally combined or omitted.
2

Estimate gateway and capacity consumption

Separate fixed gateway operating hours from variable capacity-unit hours and processed data. For an existing gateway, use Azure metrics and billing exports; for a new design, document minimum, typical, and peak assumptions instead of one unexplained average.

  • Gateway hours reflect the number of deployed gateways.
  • Capacity-unit hours have a measured or documented forecast basis.
  • Peak traffic and autoscaling assumptions are recorded separately.
3

Include diagnostics, networking, and security operations

The gateway line item does not include the whole production operating model. Add Log Analytics ingestion and retention, alerting, workbooks, network or public IP costs, egress where applicable, certificate operations, rule tuning, and incident-response effort.

  • Diagnostic categories and daily log volume are listed.
  • Retention and security-platform export are included.
  • Rule, exclusion, certificate, and rollback ownership has a monthly budget.
4

Validate the estimate against a staged deployment

Run WAF_v2 in a controlled architecture long enough to capture normal and peak capacity behavior. Compare the worksheet with Cost Management data, then update scaling limits, log filters, retention, and budget alerts before broad production rollout.

  • At least one representative traffic period is measured.
  • The largest forecast-to-actual variance is explained.
  • Budget alerts and scale assumptions are updated from observed data.

Validation checklist

  • Record the Azure region, tier, currency, rate source, and rate-check date with the worksheet.
  • Confirm gateway-hours and capacity-unit hours represent all required environments.
  • Compare predicted capacity and diagnostic volume with staged Azure metrics.
  • Reconcile the total with Azure Cost Management and explain material variance before production expansion.

Rollback planning

  • Keep the previous application route available during a staged gateway rollout.
  • Use detection mode while validating rule behavior and diagnostic volume.
  • Configure budgets and alerts before widening autoscale limits or log retention.

Common mistakes

  • Quoting one WAF price without naming the Azure region, tier, or architecture.
  • Counting fixed gateway hours while omitting capacity-unit consumption.
  • Ignoring Log Analytics ingestion, retention, networking, and ongoing policy operations.
  • Treating Front Door WAF and Application Gateway WAF pricing as interchangeable.

Related WAF profiles

Azure Web Application Firewall

FAQ

What does the Azure Application Gateway WAF Pricing Calculator workflow validate?

It validates that the estimate names the Azure region and tier, separates fixed and variable consumption, includes diagnostic operations, and can be reconciled with a staged deployment.

What must pass before Azure Application Gateway WAF Pricing Calculator is used in production?

Do not use the worksheet as a production budget until regional rates, capacity assumptions, diagnostics, networking, scale limits, alerts, and representative Cost Management data have been reviewed.

Sources