Calculator

What a process pays back

Put in the hours, the cost of an hour, and the build budget. You get the monthly benefit, the payback, ROI, NPV and IRR. The math runs in rubles. The screen shows the currency you pick.

Rates are fixed at 3 October 2026 and do not update themselves. The dollar and the euro are the Bank of Russia daily fixing: 1 USD = 83.4839 RUB, 1 EUR = 94.3201 RUB. The peso is not in that file, so ARS is crossed through the dollar: 1 USD = 1523.0868 ARS.

2026-10-03

Currency

RUBUSDEURARS

Switching currency converts the money fields. Hours, the working share and the rate stay as typed.

Inputs

Hours the routine takes each monthh/moHours a month that sit on work a person could stop doing.Share of those hours that is real workshareA month has 168 hours. People are not working all of them: lunch, switching, talk. Usually 0.5 to 0.8.What an hour of that person costsUSDPay, tax, a seat and software. Not the rate written in the contract.What those hours earn once they are freeUSDThe person stops moving rows between sheets and does work someone pays for.What the automation costs each monthUSDModels, hosting, support. What it takes for the system to stay up.One-time budget to launchUSDThe look at the process, the build, the rollout. One bill, not a subscription.How many months to look atmoThe window the return is counted over. Usually 12 or 24.Rate below which the project is not worth it% /yrIf the project returns less than money costs the business, it loses value. The default is 20% a year.

Result

Benefit / month: 718.70 USD
FTE: 0.15
Payback: 8.3 mo
ROI: 44.0%
NPV: 1,769.28 USD
IRR: 73.3%
TCO: 9,582.69 USD
Cumulative: 2,635.24 USD

Monthly benefit is hours times the cost of an hour, plus the extra income, minus the monthly running cost. Payback is the one-time budget divided by that benefit. ROI over the horizon is the benefit across every month, minus the budget, divided by the budget. TCO is the budget plus the running cost across the horizon. NPV discounts the same benefit month by month. IRR looks for the rate that brings NPV to zero. The cumulative figure counts the saving from month one. The source calculator spreads the build across the development months on a chart. That chart is not on this page, and these figures do not depend on it. The result is not a quote.

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