Timeline calculator
How Long Does Painting Take?
How long does painting take? Enter the size of the job below.
Project Mode
Estimates based on experienced contractor pace.
How to Use This Painting Timeline Calculator
- Use this painting timeline calculator. Enter the total length of the walls and the wall height. A typical house is about 225 ft of wall at 8 ft high — about 1,800 sq ft of wall, the same size as the painting cost calculator. Do not use floor area.
- Enter how many finish coats (two is typical), whether the walls need a lot of extra patching (no is typical), and how many wall colors. Overnight dry can overlap a night between work days.
- Set crew size (hired starts at two people) and working hours per day.
- Calculate to see wall area, crew hours, and days until the walls are done. Toggle DIY for slower one-person production.
Formula Breakdown
Every number you type is listed below before the calculation steps. This page answers how many days the job takes, not what it costs.
What you enter
These are the job-size and yes-or-no questions that set the day count.
- Total length of walls (ft)
- Wall height (ft)
- Number of finish coats
- Do the walls need a lot of extra patching?
- How many wall colors?
- Days of waiting between coats
- How many people on the job
- Working hours per day
If you are doing it yourself
These values are used only when you choose I am doing it myself.
- Project ModeHire it out sets DIY extras to zero. I am doing it myself applies the values below.
- Snack or drink breaks per day
- Step-outside breaks per day
- Unplanned store trips
Show the math (technical)
These steps turn the numbers you typed into hours and days. You do not need this to use the calculator.
- Paintable wall area (sq ft)
(Total length of walls (ft) × Wall height (ft))This intermediate result feeds the calculator’s final comparison. - Person-hours (one person doing all the work)
(1 − diyMode) × ((((Total length of walls (ft) × Wall height (ft)) × (1 + Do the walls need a lot of extra patching? × 0.5)) × 0.008) + (((Total length of walls (ft) × Wall height (ft)) × Number of finish coats + max(0, How many wall colors? − 1) × 400) × 0.005)) + diyMode × ((((Total length of walls (ft) × Wall height (ft)) × (1 + Do the walls need a lot of extra patching? × 0.5)) × 0.02) + (((Total length of walls (ft) × Wall height (ft)) × Number of finish coats + max(0, How many wall colors? − 1) × 400) × 0.012))Hours if one person did all the work. - People on the job
How many people on the jobThis intermediate result feeds the calculator’s final comparison. - Work days (people on site)
ceil((((1 − diyMode) × ((((Total length of walls (ft) × Wall height (ft)) × (1 + Do the walls need a lot of extra patching? × 0.5)) × 0.008) + (((Total length of walls (ft) × Wall height (ft)) × Number of finish coats + max(0, How many wall colors? − 1) × 400) × 0.005)) + diyMode × ((((Total length of walls (ft) × Wall height (ft)) × (1 + Do the walls need a lot of extra patching? × 0.5)) × 0.02) + (((Total length of walls (ft) × Wall height (ft)) × Number of finish coats + max(0, How many wall colors? − 1) × 400) × 0.012)) + (diyMode × min(Snack or drink breaks per day × 0.25 + Step-outside breaks per day × 0.15 + Unplanned store trips × 1.5, 3)))) ÷ (max(0.001, How many people on the job × Working hours per day)))This result is shown in days. - Days of waiting (nobody working)
max(0, (((max(0, Number of finish coats − 1)) × Days of waiting between coats)) − max(0, (ceil((((1 − diyMode) × ((((Total length of walls (ft) × Wall height (ft)) × (1 + Do the walls need a lot of extra patching? × 0.5)) × 0.008) + (((Total length of walls (ft) × Wall height (ft)) × Number of finish coats + max(0, How many wall colors? − 1) × 400) × 0.005)) + diyMode × ((((Total length of walls (ft) × Wall height (ft)) × (1 + Do the walls need a lot of extra patching? × 0.5)) × 0.02) + (((Total length of walls (ft) × Wall height (ft)) × Number of finish coats + max(0, How many wall colors? − 1) × 400) × 0.012)) + (diyMode × min(Snack or drink breaks per day × 0.25 + Step-outside breaks per day × 0.15 + Unplanned store trips × 1.5, 3)))) ÷ (max(0.001, How many people on the job × Working hours per day)))) − 1))This result is shown in days. - Extra DIY hours (trips and slower days)
diyMode × min(Snack or drink breaks per day × 0.25 + Step-outside breaks per day × 0.15 + Unplanned store trips × 1.5, 3)Hours if one person did all the work. - Days until this is done
max(1, (ceil((((1 − diyMode) × ((((Total length of walls (ft) × Wall height (ft)) × (1 + Do the walls need a lot of extra patching? × 0.5)) × 0.008) + (((Total length of walls (ft) × Wall height (ft)) × Number of finish coats + max(0, How many wall colors? − 1) × 400) × 0.005)) + diyMode × ((((Total length of walls (ft) × Wall height (ft)) × (1 + Do the walls need a lot of extra patching? × 0.5)) × 0.02) + (((Total length of walls (ft) × Wall height (ft)) × Number of finish coats + max(0, How many wall colors? − 1) × 400) × 0.012)) + (diyMode × min(Snack or drink breaks per day × 0.25 + Step-outside breaks per day × 0.15 + Unplanned store trips × 1.5, 3)))) ÷ (max(0.001, How many people on the job × Working hours per day)))) + (max(0, (((max(0, Number of finish coats − 1)) × Days of waiting between coats)) − max(0, (ceil((((1 − diyMode) × ((((Total length of walls (ft) × Wall height (ft)) × (1 + Do the walls need a lot of extra patching? × 0.5)) × 0.008) + (((Total length of walls (ft) × Wall height (ft)) × Number of finish coats + max(0, How many wall colors? − 1) × 400) × 0.005)) + diyMode × ((((Total length of walls (ft) × Wall height (ft)) × (1 + Do the walls need a lot of extra patching? × 0.5)) × 0.02) + (((Total length of walls (ft) × Wall height (ft)) × Number of finish coats + max(0, How many wall colors? − 1) × 400) × 0.012)) + (diyMode × min(Snack or drink breaks per day × 0.25 + Step-outside breaks per day × 0.15 + Unplanned store trips × 1.5, 3)))) ÷ (max(0.001, How many people on the job × Working hours per day)))) − 1))))This result is shown in days.
How the Painting Timeline Estimate Works
This painting timeline calculator turns the size of the job, how hard the work is, and how many hours you work in a day into a day count. Use it to see how long painting takes, and where a DIY calendar stretches past a hired crew.
Wall area is total wall length × height. Prep and paint hours scale with that area; extra colors add cut-in time, not extra square feet. Extra patching stretches prep only.
On 1,800 sq ft and two coats, a two-person crew is about 32 person-hours — three calendar days. The second-coat overnight can overlap a night between work days, so it does not always add a fourth day.
DIY uses slower hours on the same takeoff and a crew of one. Extra DIY hours stay a small extra on top and do not apply when you hire.
Why Use This Painting Timeline Calculator
- Turns the size of the painting job into a day count you can plan around.
- Shows hours if one person did all the work, then how a hired crew or a DIY weekend turns that into calendar days.
- Puts waiting (overnight dry, extra coats, extra patching) next to work days so you are not surprised by days nobody is painting.
- Lets you compare hire-it-out versus doing it yourself.
What Changes How Long Painting Takes
- Job size: the values for Total length of walls, Wall height, and Number of finish coats usually move the day count more than anything else.
- How many people are on the job: more people shorten calendar days, not the person-hours total.
- Waiting: overnight dry between coats, extra finish coats, or extra patching — days nobody is painting.
- Doing it yourself: shorter days, extra trips, and learning time stretch the calendar past a hired crew.
DIY vs Professional Painting Timeline
Person-hours
Hours if one person did all the work. A two-person crew does not double this number — it shortens calendar days.
Days until this is done
Work days plus waiting. Waiting is days nobody is painting — overnight dry between coats, extra finish coats, or extra patching.
Hired vs doing it yourself
Hired uses a typical crew and full workdays. Doing it yourself usually starts at one person and shorter days, so the calendar stretches.
Interior Walls for a Typical House (~1,800 sq ft)
For example, painting interior walls for a typical house (~1,800 sq ft, two coats) takes a two-person crew about 3 days.
That is about 32 hours if one person did all the work. Overnight dry can overlap a night between work days.
Two coats with a two-person crew on that house-wall takeoff often lands near three days until the walls are done. Extra patching and extra colors stretch hours, not gallons.
Paint Project Timeline: Dry Time Matters
The calculator treats crew hours and drying separately, because they scale differently. Adding a third coat adds rolling time and may add a wait night if the crew would otherwise finish in one work day.
Wall area drives the hours if one person did all the work. Coat count and overnight dry drive extra calendar days only when those waits cannot overlap nights between work days.
Painting Time: Crew vs Weekend
DIY painting typically takes two to three times a pro's hands-on time, mostly in prep and cutting-in. The good news is that painting is forgiving, so the quality gap closes faster than on skilled trades.
Extra DIY hours from trips and slower days are where casual DIY time disappears, one pause at a time.
Planning the Painting Timeline Estimate
Use the estimate to plan around dry cycles, not just application. A room may be painted in a day but not ready for furniture until the paint has cured, which takes longer than it takes to dry to the touch.
For multi-room projects, stagger prep and painting so one room dries while you work the next, keeping your crew or yourself continuously productive.
Frequently Asked Questions About How Long Painting Takes
How long does painting take?
For example, painting interior walls for a typical house (~1,800 sq ft, two coats) takes a two-person crew about 3 days.
That is about 32 hours if one person did all the work. Overnight dry can overlap a night between work days.
Does DIY take longer than hiring a pro for painting?
Usually. A homeowner timeline often runs two to three times a professional painting timeline estimate once you add learning time, shorter days, and supply runs.
What delays painting?
Missing parts, a slower first try, and surprises in the work are what most often stretch the calendar past the first painting timeline estimate. Weather, dry time, or inspections can add extra days on some jobs, but they are not the whole story.