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Station / chainage

Add positive or negative chainage to a station read from plans. Parsing follows a simple hundreds-plus-feet rule — confirm the same convention with your survey control.

Station math

Enter station as hundreds+feet (e.g. 10+00 = 1000.00 ft, 1+50 = 150 ft). Second part must be under 100.00 unless you use decimals (e.g. 12+34.5).

From station

1,000 ft

Δ chainage (ft)

To station

10+50

Absolute: 1,050 ft

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