How Pricing Works

Every task is priced from your actual survey workload. We use these three inputs:

Coverage Area

The area of your dataset in square kilometers (km^2).

Average Spacing

Closer point spacing means more detail and more compute.

Contour Interval

Smaller contour intervals generate denser contour lines.

Formula

Price (USD) = Area * 10 * (10 / Spacing) / Interval

Base price: USD 10 per km^2 at 10m spacing and 1m interval.

Spacing clamp: 1.0m to 100.0m for stability.

Interval clamp: 0.1m to 100.0m for stability.

Final display: Formula result rounded to 2 decimals for UI display.

Metered Checkout Rule

Hosted checkout uses a metered unit and integer quantity so billing works consistently across providers.

Default billing unit: USD 0.10 per unit (10 cents), configurable by service settings.
Quantity = ceil(rounded_formula_price_in_cents / unit_price_cents).
Checkout subtotal = quantity * unit_price_cents, which may round up by less than one unit.

Example Calculations

Area Spacing Interval Formula Price Metered Subtotal*
0.5 km^2 10 m 1 m $5.00 $5.00
1 km^2 10 m 1 m $10.00 $10.00
1 km^2 5 m 1 m $20.00 $20.00
1 km^2 10 m 0.5 m $20.00 $20.00
2 km^2 20 m 2 m $5.00 $5.00
0.1234 km^2 13 m 1 m $0.95 $1.00

* Metered subtotal example assumes a USD 0.10 unit price.

Free Download Allowance

Each client receives up to 3 free downloads. If a completed job is eligible, checkout is skipped and the shown payable amount becomes USD 0.00.

What You Get

Professional DXF output for AutoCAD, Civil 3D, and compatible CAD tools.
Topologically clean contour lines with major/minor contour support.
Interactive preview and immediate download after free access or payment.

Payment Methods

We support hosted checkout providers in this order: Creem, Paddle, PayPal, then demo fallback (if configured).

  • Creem checkout
  • Paddle checkout
  • PayPal checkout
  • Credit/debit cards where supported by the selected provider

The tool only shows providers that are currently enabled on the server.

Ready to Generate Contours-

Upload your elevation file and see the exact calculated amount before checkout.

Try It Now