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    Free tools

    Free surveying tools, office-grade

    The calculators our own field teams use daily — free for every surveyor and landowner. No sign-up, no limits.

    Coordinate conversion

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    Between 195 Arab-world and global systems — one point, whole files, or your current position.

    Arab-world coordinate converter

    195 systems across 22 Arab countries (Egypt belts, Ain el Abd, Nahrwan, Karbala…) ↔ WGS84 and UTM.

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    Batch coordinate file converter

    Upload a CSV/Excel/KML/GeoJSON/DXF file and convert thousands of points at once, choosing the output format — all in the browser.

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    MGRS converter

    Convert between the MGRS military grid reference, geographic coordinates, and UTM, at any precision from 1 m to 10 km.

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    My location coordinates

    Locate yourself from the browser GPS and read your coordinates in WGS84, MGRS, UTM, and every national system covering you.

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    Measurement & calculation

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    Areas, distances, and projection factors computed geodesically on the WGS 84 ellipsoid.

    Land area calculator

    Compute a parcel’s area from GPS coordinates or by drawing on the map, in any system — feddan, qirat, sahm, m², with perimeter.

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    Distance & bearing calculator

    Geodesic distance and forward/back azimuth between two points in any system, with grid distance and ΔE/ΔN.

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    Scale factor & convergence

    Point scale factor k and grid convergence γ for any projected system, with the combined height factor and grid↔ground conversion.

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    Drone GSD calculator

    Ground sample distance (GSD), image footprint, flight altitude, and photo count — for planning a drone aerial survey.

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    Surveyor calculations (COGO)

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    Traverse, curves, leveling, angle and slope conversion — the daily technical-office calculations.

    Traverse calculator (Bowditch)

    From bearings and distances: misclosure, Bowditch adjustment, adjusted coordinates, and the enclosed area in land units.

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    Curve calculator (horizontal/vertical)

    Horizontal circular curve (T/L/LC/E/M and a deflection table) and a vertical parabola with its high/low point and elevation table.

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    Leveling calculator (rise & fall / HI)

    Reduce a level book by the rise-and-fall and height-of-instrument methods, with the arithmetic checks and the ±k√K closure.

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    Angle & bearing converter

    Degrees ↔ grad ↔ mil ↔ radian ↔ DMS, and quadrantal bearing ↔ whole-circle azimuth — Arabic numerals accepted.

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    Slope & grade calculator

    Percent ↔ degrees ↔ ratio (1:n) ↔ per-mille, or from rise/run — with worked examples.

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    Unit converters

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    Egyptian and Arab land units: feddan, qirat, sahm, dunum, and hectare.

    Egyptian land-units converter

    Feddan ↔ qirat ↔ sahm ↔ m², with the deed-style composite output.

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    Dunum converter (metric/Iraqi)

    The metric dunum (1,000 m² — Jordan, Palestine, Lebanon, Syria) and the Iraqi dunum (2,500 m² = 25 olk) ↔ m², hectare, feddan.

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    Surveying files

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    Convert and view KML, DXF, Shapefile, GeoJSON, and GPX files — entirely in your browser.

    Surveying file format converter

    KML ↔ DXF ↔ Shapefile ↔ GeoJSON ↔ CSV/Excel ↔ KMZ ↔ GPX — points, lines and polygons with attributes and reprojection, all in the browser.

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    Surveying file viewer

    View KML, KMZ, DXF, Shapefile, GeoJSON, and GPX files on the map with attributes and measurement — nothing uploaded.

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    Reference

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    Reference for the EPSG coordinate systems used across the Arab world.

    EPSG coordinate-system reference

    Reference for every Arab-world coordinate system: parameters, proj4, WKT, area of use, accuracy, and a ready converter.

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    Converters by country

    A dedicated page per country: its national systems first, a ready capital-city sample point, and a quick reference for its geodetic datums.

    Need certified survey work, not just a calculator? Our team covers surveying, certified maps, and cadastral work across Egypt and the Gulf. Request a quote