Surveying & Mapping
GPS Coordinate Converter
Converts GPS coordinates between decimal degrees, DMS, and UTM
Updated May 13, 2026 · Live
What this tool does
Converts GPS coordinates between decimal degrees, DMS, and UTM.
Formula Used
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How the gps coordinate converter works
Converts GPS coordinates between decimal degrees, DMS, and UTM. The calculator takes your dimensions and supplier rates, applies a standard US construction formula, and returns a quantity with an indicative cost. Every figure is an estimate — site conditions always move the final number.
Typical US surveying and mapping wastage
Setting-out errors do not waste material at the survey stage but compound through every following trade — a 1/2" error at framing becomes a 2" problem by finish. Our defaults reflect common US trade allowances, and can be adjusted upwards for non-standard geometry or downwards where experience supports a lower figure.
What this tool does not do
It does not replace a professional quote, factor regional pricing, assess structural adequacy, or confirm building code compliance. Those remain the responsibility of a suitably qualified designer, engineer, or your local building official.
On-site considerations for gps coordinate converter
Boundary disputes are expensive. For plot-critical measurements, commission a Professional Land Surveyor (PLS) survey rather than relying on plat or assessor maps.
Codes and compliance
Wetland boundaries, flood zones (FEMA), and easements all need survey input. Floodplain construction follows the local floodplain ordinance and FEMA elevation certificates. When in doubt, file a pre-application question with your local building department — early clarity is cheaper than a corrective inspection.
Before you order
Rent rather than buy survey kit unless used weekly. A total station plus rod operator runs $400–600/day from a survey-equipment rental. Cross-checking the calculator’s output against a supplier quote helps catch differences in pricing assumptions — ask for exact product specifications (grade, finish, batch number) and confirm delivery timescales against your programme.
Adjusting the defaults
Every input in this calculator is editable. Enter your own dimensions, supplier prices, and wastage allowance — the output recalculates instantly. If the defaults feel off for your region or project type, your own numbers always override them.
Using this gps coordinate converter alongside other BuildMetricLab tools
This calculator works best as part of a planning workflow. Pair the quantity with our project contingency, labor-hours, and material-cost calculators to build a complete estimate before you pick up the phone to a supplier. All BuildMetricLab tools run entirely in your browser — no sign-up, no data sent anywhere, and every formula is shown on-page so you can audit the math.
Sources & methodology
This tool converts GPS coordinates between three standard formats: decimal degrees (DD), degrees-minutes-seconds (DMS), and Universal Transverse Mercator (UTM). DD-to-DMS conversion applies the relationship DD = D + M/60 + S/3600, with sign determined by hemisphere (negative for South latitude and West longitude). UTM conversion uses the Transverse Mercator projection computed against the WGS84 ellipsoid parameters (semi-major axis a = 6,378,137 m, flattening f = 1/298.257223563), which is the global standard reference ellipsoid for GPS. All three formats represent the same point on the Earth's surface; no positional accuracy is added or removed during conversion.
Frequently asked questions
Are gps coordinate converter results accurate enough to order materials?
Use them as a starting estimate only. Verifying the final quantity with your supplier or contractor before ordering is good practice — site conditions, wastage and cut-offs all affect the true figure.
What wastage percentage should I use?
The calculator defaults to the typical US trade allowance for surveying & mapping. Increase it for complex cuts, awkward shapes, or first-time DIY. The default wastage allowance reflects common trade practice; values lower than the default may underestimate offcuts.
Does this replace professional advice?
No. This tool is a planning estimator. For work that affects structure, building code compliance, gas, electrical, plumbing, or drainage to a public sewer, consult a licensed contractor or design professional.
Can I change the unit prices?
Yes — every price field is editable. Plug in your supplier's quote to get a total that matches your project.
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