Downtime Risk & SLA Cost Calculator

What is unreliable internet really costing you, and what’s the value of fiber plus diversity?

Real-time math SLA credits Redundancy modeling Payback months

Inputs

Target max downtime (hours/year)

Business hours per week

Revenue per hour ($)

Staff affected (count)

Staff cost per hour ($)

Amortize CAPEX over years

Status Quo

Access type

MRC ($/mo)

Outages / year

Avg MTTR (hours)

SLA credit % (per qualifying event)

SLA trigger (hours/event)

SLA annual cap % of MRC

CAPEX ($)

Presets: Coax 4 outages × 6 hours. 5G fixed 6 × 4. Single DIA 2 × 3. Edit as needed.

Architectures To Compare

Single DIA fiber

MRC ($/mo)

CAPEX ($)

Outages / year

Avg MTTR (hours)

SLA credit %

SLA trigger (hours)

SLA annual cap % of MRC

Degradation when up (failover context)

DIA + failover (5G or broadband)

Total MRC ($/mo)

CAPEX ($)

DIA outages / year

DIA MTTR (hours)

Failover outages / year

Failover MTTR (hours)

Productivity hit during failover %

Revenue hit during failover %

SLA credit % (DIA)

SLA trigger (hours)

SLA annual cap % of MRC

Dual diverse DIA (independent routes/providers)

Total MRC ($/mo)

CAPEX ($)

Path A outages / year

Path A MTTR (hours)

Path B outages / year

Path B MTTR (hours)

Revenue hit when one path down %

Productivity hit when one path down %

SLA credit %

SLA trigger (hours)

SLA annual cap % of MRC

Dark + lit path (independent pair)

Total MRC ($/mo)

CAPEX ($)

Dark outages / year

Dark MTTR (hours)

Lit outages / year

Lit MTTR (hours)

Revenue hit when one path down %

Productivity hit when one path down %

SLA credit %

SLA trigger (hours)

SLA annual cap % of MRC

Results

Recommended option

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Status quo loss (net of SLA)

Best payback vs status quo

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Tip: if dual diverse shows extremely low downtime, verify the two paths are truly independent with separate entrances and upstreams.

Architecture Comparison

Architecture	Downtime h/yr	Degraded h/yr	Annual loss $	SLA credits $	Total annual cost $	Meets target?	Payback vs SQ