Calculate the Area of a Triangle

This will calculate the area of a triangle if you know the length of its three sides.

Length of Side A
Length of Side B
Length of Side C
Area
6

Triangle Area Formula

The area of a triangle is expressed by Heron's formula:

In this formula, a, b, and c represent the lengths of the three sides. s represents the "semiperimeter" or half the perimeter:

Area of a Triangle Table
(results are rounded)
Side ASide BSide CArea
1110.4330
1220.9682
1331.4790
1441.9843
1552.4875
1662.9896
1773.4911
1883.9922
1994.4931
110104.9937
111115.4943
112125.9948
2221.7321
2231.9843
2332.8284
2342.9047
2443.8730
2453.7997
2554.8990
2564.6837
2665.9161
2675.5621
2776.9282
2786.4372
2887.9373
2897.3101
2998.9443
29108.1815
210109.9499
210119.0519
2111110.954
211129.9216
2121211.958
3333.8971
3344.4721
3354.1458
3445.5621
3456.0000
3465.3327
3557.1545
3567.4833
3576.4952
3668.7142
3678.9443
3687.6444
37710.256
37810.392
3798.7856
38811.787
38911.832
38109.9216
39913.311
391013.266
391111.054
3101014.830
3101114.697
3101212.183
3111116.346
3111216.125
3121217.859
4446.9282
4457.8062
4467.9373
4476.7777
4559.1652
4569.9216
4579.7980
4588.1815
Side ASide BSide CArea
46611.314
46711.977
46811.619
4699.5623
47713.416
47813.998
47913.416
471010.929
48815.492
48915.998
481015.199
481112.286
49917.550
491017.984
491116.971
491213.636
4101019.596
4101119.961
4101218.735
4111121.633
4111221.930
4121223.664
55510.825
55612.000
55712.497
55812.000
5599.8075
56613.636
56714.697
56814.981
56914.142
561011.399
57716.346
57817.321
57917.412
571016.248
571112.969
58818.998
58919.900
581019.810
581118.330
581214.524
59921.615
591022.450
591122.185
591220.396
5101024.206
5101124.980
5101224.545
5111126.780
5111227.495
5121229.342
66615.588
66717.057
66817.889
66917.859
661016.583
661113.189
67718.974
67820.333
67920.976
671020.662
671118.974
671214.948
68822.249
68923.525
681024.000
681123.419
Side ASide BSide CArea
681221.331
69925.456
691026.663
691126.981
691226.143
6101028.618
6101129.765
6101229.933
6111131.749
6111232.840
6121234.857
77721.218
77822.978
77924.129
771024.495
771123.816
771221.633
78825.178
78926.833
781027.811
781127.928
781226.906
79929.020
791030.594
791131.420
791231.305
7101032.786
7101134.293
7101234.978
7111136.499
7111237.947
7121240.174
88827.713
88929.765
881031.225
881131.952
881231.749
89932.249
891034.197
891135.496
891235.999
8101036.661
8101138.528
8101239.686
8111140.988
8111242.789
8121245.255
99935.074
991037.417
991139.181
991240.249
9101040.186
9101142.426
9101244.039
9111145.168
9111247.329
9121250.059
10101043.301
10101145.934
10101248.000
10111148.990
10111251.521
10121254.544
11111152.395
11111255.317
11121258.660
12121262.354