Area of a Parallelogram Calculator
The area of a parallelogram is base × perpendicular height: a 9 cm base and 4 cm height give 36 cm².
Perpendicular height, not the slanted side.
36 cm²
- Area
- 36 cm²
In other units: 0.0036 m² · 3600 mm² · 3.6 × 10⁻⁹ km² · 3.6 × 10⁻⁷ ha · 0.0387501 ft² · 5.58001 in² · 0.00430556 yd² · 8.89579 × 10⁻⁷ ac · 1.38997 × 10⁻⁹ mi²
Step-by-step solution
- A = b × h
- A = 9 × 4 = 36 cm²
Area of a Parallelogram Formula
A = b × h
b base, h perpendicular height
Worked Example
A parallelogram with a 9 cm base and 4 cm height:
- A = b × h
- A = 9 × 4 = 36 cm²
Same area in other units: 0.0036 m² · 3600 mm² · 3.6 × 10⁻⁹ km² · 3.6 × 10⁻⁷ ha · 0.0387501 ft²
Frequently asked questions
How do I find the area of a parallelogram using diagonals?
A = ½ × d₁ × d₂ × sin θ, where θ is the angle between the diagonals. If they meet at 90° (a rhombus), this becomes ½ d₁ d₂.
How do I find the area from two sides and an angle?
A = a × b × sin θ, with θ the angle between the sides. Sides 9 and 5 at 60° give 9 × 5 × 0.866 = 38.97.
What is the area of a parallelogram in vector form?
The magnitude of the cross product of two adjacent side vectors: A = |a × b|.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures .
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology .
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
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Scientific Converters. (2026, October 15). Area of a Parallelogram Calculator. Retrieved October 25, 2026, from https://scientificconverters.com/calculators/area-of-a-parallelogram/
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Scientific Converters, "Area of a Parallelogram Calculator," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/calculators/area-of-a-parallelogram/