Interpreter invoice calculator

Work out the billable time and total for one assignment: hourly, minimum block or flat fee, plus mileage and parking. It runs in your browser and stores nothing.

Type your own numbers. Nothing is pre-filled, and we do not suggest a rate, a minimum or a per-mile amount: those come from your agreement with each client.

Total for this assignment

$0.00

Fill in the fields above and your totals appear here.

Time worked: —
Billed time: —
Fee: —
Mileage: —
Parking or tolls: —

Text to copy

Everything runs in your browser. Nothing you type is sent anywhere, saved or stored.

How it counts

Time worked is the end time minus the start time, to two decimals (hundredths of an hour). If the end is earlier than the start, it is treated as overnight, so 10:00 PM to 1:00 AM is 3.00 hours.
Hourly: time worked × your rate.
Minimum block: the longer of the time worked and your minimum block, × your rate. A 45-minute job with a 2-hour block is billed as 2.00 hours.
Flat fee: the amount you type. Times are not used.
Mileage: miles × the per-mile rate you enter. It is left out until you enter a rate.
Parking or tolls: added as typed.
Total = fee + mileage + parking, rounded to the cent.

The sums follow the same rules as the Assignments tab in the Interpreter Business Kit, so you can use this page to double-check a line.

What it does not do

It does one assignment at a time and does not remember anything.
It does not apply cancellation fees, late fees, tax or any rate rules. Use the terms in your own agreement.
It does not tell you what you may bill for travel or parking.

Want to see how an invoice is put together? Read the invoice template example or the invoicing checklist. Tracking mileage? See the mileage log guide.

One assignment here. Every assignment in the kit.

The Interpreter Business Kit uses these same rules for every row of your assignment log, then builds the printable invoice for you. The free tracker is a simpler place to start.

See the full kit · $15 Look inside the kit

Good to know. This calculator does arithmetic on the numbers you type. It does not know your agreements, and it is not tax, legal or financial advice. Local Shift makes simple spreadsheet tools and is not an interpreting agency, an accounting firm or a law firm. Check each client’s terms for how they bill minimums, travel and cancellations.