Calculate the Area of an Ellipse

This will calculate the area of an ellipse based on the length of its two axes.

Length of Semi-Major Axis
Length of Semi-Major Axis
Area
157.079633
(results are rounded)

Area of an Ellipse Formula

The area of an ellipse is the length of its semi-major axis times the length of its semi-minor axis times pi.

Area = π * Semi-Major Axis * Semi-Minor Axis

Area of an Ellipse Table
results are rounded
r1r2Area
113.1416
216.2832
2212.566
319.4248
3218.850
3328.274
4112.566
4225.133
4337.699
4450.265
5115.708
5231.416
5347.124
5462.832
5578.540
6118.850
6237.699
6356.549
6475.398
6594.248
66113.10
7121.991
7243.982
7365.973
7487.965
75109.96
76131.95
77153.94
8125.133
8250.265
8375.398
84100.53
85125.66
86150.80
87175.93
88201.06
9128.274
9256.549
9384.823
94113.10
95141.37
96169.65
r1r2Area
97197.92
98226.19
99254.47
10131.416
10262.832
10394.248
104125.66
105157.08
106188.50
107219.91
108251.33
109282.74
1010314.16
11134.558
11269.115
113103.67
114138.23
115172.79
116207.35
117241.90
118276.46
119311.02
1110345.58
1111380.13
12137.699
12275.398
123113.10
124150.80
125188.50
126226.19
127263.89
128301.59
129339.29
1210376.99
1211414.69
1212452.39
13140.841
13281.681
133122.52
134163.36
135204.20
136245.04
r1r2Area
137285.88
138326.73
139367.57
1310408.41
1311449.25
1312490.09
1313530.93
14143.982
14287.965
143131.95
144175.93
145219.91
146263.89
147307.88
148351.86
149395.84
1410439.82
1411483.81
1412527.79
1413571.77
1414615.75
15147.124
15294.248
153141.37
154188.50
155235.62
156282.74
157329.87
158376.99
159424.12
1510471.24
1511518.36
1512565.49
1513612.61
1514659.73
1515706.86
16150.265
162100.53
163150.80
164201.06
165251.33
166301.59
r1r2Area
167351.86
168402.12
169452.39
1610502.65
1611552.92
1612603.19
1613653.45
1614703.72
1615753.98
1616804.25
17153.407
172106.81
173160.22
174213.63
175267.04
176320.44
177373.85
178427.26
179480.66
1710534.07
1711587.48
1712640.88
1713694.29
1714747.70
1715801.11
1716854.51
1717907.92
18156.549
182113.10
183169.65
184226.19
185282.74
186339.29
187395.84
188452.39
189508.94
1810565.49
1811622.04
1812678.58
1813735.13
1814791.68
1815848.23
r1r2Area
1816904.78
1817961.33
18181,017.9
19159.690
192119.38
193179.07
194238.76
195298.45
196358.14
197417.83
198477.52
199537.21
1910596.90
1911656.59
1912716.28
1913775.97
1914835.66
1915895.35
1916955.04
19171,014.7
19181,074.4
19191,134.1
20162.832
202125.66
203188.50
204251.33
205314.16
206376.99
207439.82
208502.65
209565.49
2010628.32
2011691.15
2012753.98
2013816.81
2014879.65
2015942.48
20161,005.3
20171,068.1
20181,131.0
20191,193.8
20201,256.6