Geotechnical and Hydraulics
Settlement and Movement Rate Converter
Convert settlement, heave, and ground-movement rates between common monitoring units.
Live unit conversion
Converted value
0.39370079
in/year
10 mm/year = 0.39370079 in/year
Conversion Basis
Ground movement is frequently reported in millimeters per day, millimeters per year, or inches per month. Converting to a common rate supports trend comparison, but the selected averaging period still matters.
target rate = source rate x source-to-meter-per-second factor / target factor
Common Examples
- 10 mm/year = 0.393701 in/year
- 1 in/month = 304.8 mm/year
- 1 mm/day = 365.25 mm/year
Engineering Use and Limitations
- Month-based conversions use an average month equal to 365.25/12 days.
- Rate depends on the observation interval; short-term construction movements should not be extrapolated blindly.
- Review survey precision, benchmark stability, seasonal effects, and sign convention before interpreting a trend.
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