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Percent Grade Formula

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Percent Grade is a measure of the steepness or incline of a slope, expressed as a percentage. Check FAQs

PG = (\frac{G}{R g \cdot W})

PG - Percent Grade?G - Grade Resistance?R_g - Grade Resistance Factor?W - Weight on Wheels?

Percent Grade Example

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Here is how the Percent Grade equation looks like with Values.

Here is how the Percent Grade equation looks like with Units.

Here is how the Percent Grade equation looks like.

4.0024 = (\frac{9.99}{0.1248 \cdot 20})

4.0024 = (\frac{9.99N}{0.1248N/Kg \cdot 20kg})

4.0024 = (\frac{9.99}{0.1248 \cdot 20})

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Percent Grade Solution

Follow our step by step solution on how to calculate Percent Grade?

FIRST Step Consider the formula

PG = (\frac{G}{R g \cdot W})

Next Step Substitute values of Variables

∴

PG = (\frac{9.99N}{0.1248N/Kg \cdot 20kg})

Next Step Prepare to Evaluate

∴

PG = (\frac{9.99}{0.1248 \cdot 20})

Next Step Evaluate

∴

PG = 4.00240384615385

LAST Step Rounding Answer

∴

PG = 4.0024

Percent Grade Formula Elements

Variables

Percent Grade

Percent Grade is a measure of the steepness or incline of a slope, expressed as a percentage.

Symbol: PG

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Percent Grade

Grade Resistance

Grade Resistance is the force, due to gravity, that resists the movement of a vehicle up a slope.

Symbol: G

Measurement: ForceUnit: N

Note: Value should be greater than 0.

Formulas to find Grade Resistance

Grade Resistance Factor

Grade Resistance Factor is a parameter used to account for the effect of the slope (or grade) of the terrain on the resistance of soil or other materials to sliding or deformation.

Symbol: R_g

Measurement: Gravitational Field IntensityUnit: N/Kg

Note: Value should be greater than 0.

Formulas to find Grade Resistance Factor

Weight on Wheels

Weight on Wheels is the weight of an equipment is resting on its wheels.

Symbol: W

Measurement: WeightUnit: kg

Note: Value should be greater than 0.

Formulas to find Weight on Wheels

Other formulas in Earth Moving category

Go Rolling Resistance to Motion of Wheeled Vehicles

R = (R f \cdot W) + (R p \cdot p \cdot W)

Go Weight on Wheels given Rolling Resistance

W = (\frac{R}{R f + R p \cdot p})

Go Rolling Resistance when Rolling Resistance Factor is Two Percent

R' = (0.02 + 0.015 \cdot p) \cdot W

Go Grade Resistance for Motion on Slope

G = R g \cdot PG \cdot W

How to Evaluate Percent Grade?

Percent Grade evaluator uses Percent Grade = (Grade Resistance/(Grade Resistance Factor*Weight on Wheels)) to evaluate the Percent Grade, The Percent Grade formula is defined as the value of percent grade, which is positive for uphill motion, and negative for downhill motion. Percent Grade is denoted by PG symbol.

How to evaluate Percent Grade using this online evaluator? To use this online evaluator for Percent Grade, enter Grade Resistance (G), Grade Resistance Factor (R_g) & Weight on Wheels (W) and hit the calculate button.

FAQs on Percent Grade

What is the formula to find Percent Grade?

The formula of Percent Grade is expressed as Percent Grade = (Grade Resistance/(Grade Resistance Factor*Weight on Wheels)). Here is an example- 0.100503 = (9.99/(0.1248*20)).

How to calculate Percent Grade?

With Grade Resistance (G), Grade Resistance Factor (R_g) & Weight on Wheels (W) we can find Percent Grade using the formula - Percent Grade = (Grade Resistance/(Grade Resistance Factor*Weight on Wheels)).

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Percent Grade Formula

Percent Grade Example

Percent Grade Solution

Percent Grade Formula Elements

Other formulas in Earth Moving category

How to Evaluate Percent Grade?

FAQs on Percent Grade

Variable Name