Heat cost calculator

What is heat costing your crew?

Heat takes 35% of a worker's output on an extreme day. Pick your industry, size your crew, and see the bill.

Illustrative only. Every figure on this page is modeled from the assumptions you set below, not a quote or a guarantee of results.

What heat costs your crew every year

$7.13M

Across 500 workers and 80 hot days a year.

$14,250 Cost per worker / year

13 days Output lost per worker

35% Of output, on an extreme day

Power user inputs, tune every assumption

Extreme heat days

Extreme hot days per year ?

Pay & productivity

Pay multiplier on extreme hot days ?

1.5x

Productivity recovered per hot day ?

15%

Heat sick days per worker / year ?

Heat incidents

Average cost per heat incident ?

Heat illness incidents / year ?

Turnover

Annual voluntary turnover rate ?

45%

Replacement cost per worker ?

Share of turnover driven by heat ?

Turnover reduction with Clema ?

15%

Workers' comp

Annual WC premium per worker ?

WC premium reduction ?

Project delays

Heat delay days / year ?

Cost per delay day ?

Include in savings

Turnover savings Workers' comp savings Incident savings Delay savings

Where the cost comes from

Six lines on the heat bill, per worker per year.

Lost output on hot days35% of a paid day on extreme days, 10% on the rest $5,850

Overtime and hazard payThe premium you pay to finish work on extreme days $4,500

Heat-related sick daysDays a worker is paid for and not on site $900

Attrition driven by heatThe share of your turnover bill that heat is causing $2,700

Heat illness incidentsSpread across the full crew $200

Schedule delaysCrew and equipment idle on a stop-work day $100

What heat costs you, per worker $14,250

Workers' compensation is deliberately left out of this bill. Premium effects are slow, carrier-specific, and would make the number look bigger than you can defend in a budget meeting. Everything above is driven by the inputs you set, so a milder year or a smaller crew moves it down.

Assumes heat takes 35% of output on an extreme day and 10% on a standard hot day, from Zander 2015, Foster 2021 and Seppanen 2006. See the research

And what Clema could take back

On these inputs, Clema could take back as much as $11,500 of that, per worker per year.

$11,500 Modeled value / worker

28.8x Modeled return on investment

13 days Estimated payback period

$5.55M Modeled fleet net, year one

Fleet net is after the cost of every vest, in year one. These figures are illustrative: they are what the model above returns for the inputs you set, not a quote, a projection, or a guarantee of results. Actual results will vary by site, climate, crew and season.

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Where Clema's modeled value comes from

Grouped into three buckets per worker per year.

Productivity $9,450

Output that could be recovered on hot days, overtime avoided, and heat-related absences prevented.

Safety $700

Heat incidents that could be avoided, workers' comp premium reductions, and project delays prevented.

Retention $1,350

Heat-driven attrition that could be prevented and replacement cost (recruiting, onboarding, ramp) avoided.

This calculator is illustrative. It is a model, not a measurement: it prices a scenario from the assumptions you set, and no result here is a quote or a promise of what Clema will deliver on your sites. Clema's side is a separate, smaller number: up to 15% of a full paid day could be recovered, never more than heat took that day. Tune every other assumption in .

What is heat costing your crew?

Six lines on the heat bill, per worker per year.

Grouped into three buckets per worker per year.

Request early access for your crew.