Paint calculation | calculator for how much paint do I need | Paint calculator | paint calculation formula for exterior and interior wall | how much a gallon of paint covers | how much does a 5 gallon of paint cover | what area does 1 litre of paint cover | what area does 1 litre of paint cover | paint coverage per sq ft | paint coverage per square meter.

Paint is any pigmented liquid, plastic, emulsion, cement paint, texture paint, liquefiable, or solid mastic composition that, after application to a substrate in a thin layer, converts to a solid film.

It is most commonly used to protect, color, or provide texture to wall. Paint can be made or purchased in many colors—and in many different types, such as watercolor or synthetic. Paint is typically stored, sold, and applied as a liquid, but most types dry into a solid.

Plastic emulsion paint is a water based paint which gives soft effect to the interior and exterior wall, it is long lasting, washable and easy to sustain.

Cement paint parts of exterior surfaces and maintenance good look of building for many years. It offers matt finish on walls and protect house from worse weather condition.

Textured paint creates stunning effect on walls of your house it not only make inspiring taxes but also provides protection from sever weather changes like alkali and ultraviolet rays.

Before you start paint work makes sure that surface should be cleaned of dust, grease and other foreign matter, deciding on Superior quality and adequate quality of paint and mix content of paint properly to get consistency in paint work.

How much paint do i need? depending on various factors come into play while arriving their coverage, like types of paint, labour skills, area of wall, wet and dry condition, due to this complexity, homeowners tend to make errors of judgement in selecting types of paint and their coverage. Here we provide paint calculator/ calculation and their formula for exterior & interior wall or room painting that will help you estimating requir paint quantity.

**Paint calculation | calculator for how much paint do I need**

You can usually make estimate how much paint you will need to buy for your home or wall project with the help of paint calculator in simple way and you can do paint calculation in such ways-

Paint calculation & how do i calculate how much paint i need in following steps:-

● Measure the height and width of wall of room, such as a room is in square shaped of wall height 10 feet and 12 feet wide

● To calculate the square footage area of the wall, multiply wall height by wall width such as 10×12 = 120 sq ft, for 4 wall of room = 120 × 4= 480 sq ft

● You can deduct area of window standard 15 sq ft and door of standard 20 sq ft minimum, so actual painting area = 480 _ (15 + 20) = 445 sq ft, hence total 445 sq ft area of wall you need to be painted. Add ceiling area of 120 sq ft, then total 445 + 120 = 565 sq ft.

● The estimate divides the total square footage by 350 to get 1 gallon of paint coverage per sq ft, as one gallon of paint covers approximately 350 sq ft for one coat. Mathematical calculation such as 565 ÷ 350 = 1.6 gallon for 1 coat and for 2 coat painting you will need = 1.6 × 2 = 3.2 gallon of paint.

Regarding this, **“how much paint do i need?”**, its depends on many factors including application methods, generally you will need 1 gallon of paint for 350 sq ft coverage of wall interior or exterior of room by applying single coat of paint and for applying 2 coat paint it will need 2 gallon of paint.

Adding second coat of paint does two things covers – it will cover bare spots left behind from the first coat and create a seal or barrier that makes the wall easier to clean. High quality paint with more pigments and resin may only require one coat.

**Paint calculation formula for exterior and interior painting**

Paint calculation formula used to estimate the amount of paint you need in order to cover the walls of a room, add together the length of all the walls and then multiply with wall height to get square footage, so to calculate how many gallons of paint you will need divide the total paintable surface area by 350 to get paint coverage per gallon in square feet. Thus one gallon of paint will cover approximately 350 sq ft wall of room exterior or interior.

So to calculate how many litres of paint you will need divide the total paintable surface area by 12 to get paint coverage per litre in square meter. Thus one litre of paint will cover approximately 12 square meters wall of room exterior or interior.

**Thus, Paint calculation formula for exterior and interior wall for room painting are following:-**

● Paint coverage in sq ft per gallon for single coat = paintable area ÷ 350

● Paint coverage in sq ft per gallon for two coat = paintable area ÷ 175

● Paint coverage in sq m per litre for single coat = paintable area ÷ 12

● Paint coverage in sq m per litre for two coat = paintable area ÷ 6

This paint calculation formula is used as paint calculator to estimate about required quantity of paint you needed, this will give intended to rough estimate and it will little vary according to many factors including application methods.

**How much a gallon of paint cover?**

Regarding this, **“how much a gallon of paint cover?”**, as a general thumb rule, a gallon of paint covers approximately 350 square footage of wall of room when applying single coat of interior or exterior painting, so to calculate how many gallons of paint you will need divide the total paintable surface area by 350.

**How many square feet does a gallon of paint cover?**

Regarding this, “**how many square feet does a gallon of paint cover?**“, as a general thumb rule, a gallon of paint covers approximately 350 square footage of wall of room when applying single coat of interior or exterior painting.

**How much does a 5 gallon of paint cover?**

Regarding this, “how much does a 5 gallon of paint cover?”, according to our paint calculator, 5 gallons of paint can cover as much as 1,750 square feet. A gallon of single coat paint will cover about 350 square feet of area.

**How many square feet does a 5 gallon of paint cover?**

Regarding this, “how many square feet does a 5 gallon of paint cover?”, as a general thumb rule and paint calculation, a 5 gallon of paint covers approximately 1,750 square footage of wall of room when applying single coat of interior or exterior painting. A gallon of single coat paint will cover about 350 square feet of area.

**What area does 1 litre of paint cover?**

Regarding this, “what area does 1 litre of paint cover?”, according to paint calculation and a general thumb rule for an emulsion paint used on interior walls and ceilings, 1 litre of paint will cover approximately 12 square metres per coat and when applying 2 coat, it will cover around 6 to 6.5 metre square wall area.

**How many square feet does 1 litre of paint cover?**

Regarding this, “how many square feet does 1 litre of paint cover?”, as a general thumb rule and paint calculation, one litre of paint covers approximately 120 square footage of wall of room when applying single coat of interior or exterior painting. A litre of single coat paint will cover about 120 square feet of area.

**How many square meters does 1 litre of paint cover?**

Regarding this, “how many square meters does 1 litre of paint cover?”, as a general thumb rule and paint calculation, one litre of paint covers approximately 12 meter square (m2) of wall of room when applying single coat of interior or exterior painting. A litre of single coat paint will cover about 12 square meters of area.

**What area does 5 litres of paint cover?**

Regarding this, “what area does 5 litres of paint cover?”, according to paint calculation and a general thumb rule for an emulsion paint used on interior walls and ceilings, 5 litres of paint will cover approximately 60 square metres per coat and when applying 2 coat, it will cover around 30 to 35 metre square wall area.

**How much paint is needed for a 12×12 room?**

Regarding this, “how much paint is needed for a 12×12 room?”, according to paint calculation and a general Thumb Rule you would need about 1.6 gallons of paint to cover a 12’x12′ room with 10 foot high walls. Mathematical calculation such as actual painting area = room area _ door area_ window area + ceiling area, hence total area = (4 × 12×10) _ 20 _ 15 + 120 = 565 sq ft, so paint calculation for 12×12 room such as 565÷350 = 1.6 gallon for 1 coat and for 2 coat painting of 12×12 room you will need 3.2 gallon of paint.

**How much paint is needed for a 10×10 room?**

Regarding this, “how much paint is needed for a 10×10 room?”, according to paint calculation and a general thumb Rule you would need about 1.4 gallons of paint to cover a 10’x10′ room with 10 foot high walls. Mathematical calculation such as actual painting area = room area _ door area_ window area + ceiling area, hence total area = (4 × 10×10) _ 20 _ 15 + 120 = 485 sq ft, so paint calculation for 10×10 room such as 485÷350 = 1.4 gallon for 1 coat and for 2 coat painting of 10×10 room you will need 2.8 gallon of paint.