Skip to content
ENExplore Calculators

Design Estimate Hours Calculator

Work out design estimate hours instantly with clear inputs, formula shown and shareable results.

About Design Estimate Hours Calculator

Core hours are screens times the per-screen rate, revisions are a percentage of that, and admin is applied to the combined design and revision total. Quoting core hours alone is the classic freelance mistake, because revisions and calls routinely add a third again to the real time spent.

Formula

Total hours

total = screens x hours per screen x (1 + revisions) x (1 + admin)

Worked example

With the default values below, Design Estimate Hours Calculator returns Total estimated hours of 66.00. Change any input above and every figure here is recalculated in your browser.

Inputs used

Screens to designminimum 1
12
Hours per screenminimum 0.1 h
4 h
Revision allowanceaccepts 0–100 %
25 %
Meetings and admin allowanceaccepts 0–100 %
10 %

Results

Total estimated hours
66.00 h
Core design hours
48.00 h
Revision hours
12.00 h
Meetings and admin hours
6.00 h

Step by step

  1. 1Values used
  2. 2Total hours
  3. 3Total estimated hours= 66.00 h
  4. 4Core design hours= 48.00 h
  5. 5Revision hours= 12.00 h
  6. 6Meetings and admin hours= 6.00 h

Assumptions and limits

  • The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

How is the Design Estimate Hours figure worked out?

total = screens x hours per screen x (1 + revisions) x (1 + admin). Core hours are screens times the per-screen rate, revisions are a percentage of that, and admin is applied to the combined design and revision total.

Why does this matter?

Quoting core hours alone is the classic freelance mistake, because revisions and calls routinely add a third again to the real time spent.

What do I need to enter?

Enter screens to design, hours per screen, revision allowance, meetings and admin allowance. The defaults shown are a realistic worked example — swap in your own figures to get a result you can use.

Related Calculators

Design Estimate Hours Calculator | Calcrivo