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01 — Cost & ROI calculators

Software build budget & runway calculator

Set a budget and a target timeline, then add the people and services the build needs. The runway chart shows exactly when the money runs out relative to the plan.

  • ~2 min
  • Free · no sign-up
  • Runs in your browser

How to use · 4 steps

  1. 01Enter budget and timelineYour total budget and how many months the build should take.
  2. 02Add the teamPick where the team is based, then use + and − to add each role you need.
  3. 03Choose infrastructure and AI usagePick the tiers that match your expected traffic and AI workload.
  4. 04Check the runwaySee how many months the budget lasts, whether it covers the plan, and a suggested budget with buffer.
Your inputsEditable
The plan
$
8 months
2 mo24 mo
The team
Where the team is based
Product engineers$7,000 / month each
2
AI / ML engineers$8,500 / month each
1
Product designers$5,500 / month each
1
Product managers$6,500 / month each
0
QA engineers$4,500 / month each
0
DevOps engineers$7,000 / month each
0
Services
Infrastructure
AI / API usage

Infrastructure $900/mo · AI usage $1,200/mo · tools & overheads $1,000/mo

ResultLive
8 monthsof runway

Covered, no bufferagainst a 8-month plan · $1,200 left over

Monthly burn$31.1k
Plan total$249k
Suggested budget$311kplan + 25% buffer
Budget remaining, month by month
Where each month's money goes
  • Product engineers × 2$14k · 45%
  • AI / ML engineers × 1$8.5k · 27%
  • Product designers × 1$5.5k · 18%
  • Infrastructure$900
  • AI / API usage$1.2k
  • Tools & overheads$1k
Want this built around your numbers?Send this result to us — it lands with your brief, and a founder replies within one working day.
How it's worked out

No black box.Every step, in plain words.

Results are estimates for planning, based on the figures you enter. They aren't financial advice or a quote.

  1. 01

    Monthly burn = team cost + infrastructure + AI/API usage + a fixed allowance for tools and overheads.

  2. 02

    Team cost = the number of each role × its monthly rate × the rate region multiplier.

  3. 03

    Runway = budget ÷ monthly burn. Coverage compares runway with the timeline you've planned.

  4. 04

    Rates are indicative monthly figures for planning, not quotes. Adjust the region to reflect where your team is based.

Questions

Good to know.

Burn rate is how much money a project or company spends each month. Runway is how many months the budget lasts at that rate.

Software timelines slip — usually because of scope that wasn't visible at the start. Planning for 20–30% more runway than the plan needs is common practice.

Yes, as a monthly usage tier. Model costs scale with volume, so treat the tier as a starting estimate and re-check it once you have real traffic.

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