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Sao Tome and Principe Electricity Bill Calculator

Free Sao Tome and Principe electricity bill calculator with country-specific defaults and clear step-by-step results.

About Sao Tome and Principe Electricity Bill Calculator

Estimates a monthly electricity bill from kWh usage, the per-kWh rate and any fixed standing charge.

Formula

Formula

Bill = usage (kWh) × rate + fixed fee

Worked example

With the default values below, Sao Tome and Principe Electricity Bill Calculator returns Energy Cost of STN 80.00. Change any input above and every figure here is recalculated in your browser.

Inputs used

Monthly Usage (kWh)minimum 0
400
Rate per kWhminimum 0 STN
0.2 STN
Fixed Monthly Feeminimum 0 STN
10 STN

Results

Energy Cost
STN 80.00
Total Monthly Bill
STN 90.00
Daily Average
STN 2.95

Step by step

  1. 1Values used
  2. 2Formula
  3. 3Energy Cost= 80.00 STN
  4. 4Total Monthly Bill= 90.00 STN
  5. 5Daily Average= 2.95 STN

Assumptions and limits

  • The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax or compounding frequency into account.
  • Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
  • Rates vary by tariff and provider in Sao Tome and Principe — use the rate on your current bill.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Rates vary by tariff and provider in Sao Tome and Principe — use the rate on your current bill.

Frequently Asked Questions

How does this calculator work?

Estimates a monthly electricity bill from kWh usage, the per-kWh rate and any fixed standing charge.

Are the figures specific to Sao Tome and Principe?

Understanding your usage in kilowatt-hours and the rate makes it easier to cut costs or compare suppliers.

Related Calculators

Sao Tome and Principe specifics

Currency
Db STNSão Tomé & Príncipe Dobra
Region
Africa
Country code
ST
Amounts look like
STN 1,234,567.89
Dates look like
Mar 9, 2026
Units
metricWeek starts Monday

Results on this page are expressed in STN (São Tomé & Príncipe Dobra). Figures are estimates for general planning — confirm current rates and thresholds with the relevant Sao Tome and Principe authority before relying on them.

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Sao Tome and Principe Electricity Bill Calculator | Calcrivo