# Despatch Calculator — Free port and charter calculator > Calculate time saved and despatch money (usually half demurrage) when loading finishes before allowed time. - URL: https://demo.fcrsoft.com/en/maritime/despatch-calculator - Language: en - Updated: 2026-10-03 - Publisher: FCRSOFT (https://fcrsoft.com) [Demos](https://demo.fcrsoft.com/?hl=en) / [Free Tools](https://demo.fcrsoft.com/en/tools) / [Maritime Calculators](https://demo.fcrsoft.com/en/maritime) / Despatch Calculator Free tool # Despatch Calculator Calculate time saved and despatch money (usually half demurrage) when loading finishes before allowed time. No sign-up needed; results update as you type. [See the system that does this automatically Open the live demo](https://demo.fcrsoft.com/login.php?package=voyage) ## Calculator Currency Allowed time : 120 hours Time used : 92 hours Daily demurrage : 15000 USD Despatch / demurrage ratio : 50 % This calculator runs in your browser; the data you enter is not stored. ## Results Time saved 1 d 4 h Daily despatch 7,500 USD Despatch amount 8,750 USD **Port Calls and Laytime on Autopilot**Result: **8,750 USD**. FCRSOFT derives the laytime calculation from port events automatically and links it to the charter party. [Open the live demo](https://demo.fcrsoft.com/login.php?package=voyage) [Request a demo](https://fcrsoft.com/en/contact/) ## Despatch Calculator: worked example Example values: Allowed time 120 hours, Time used 92 hours, Daily demurrage 15,000 USD, Despatch / demurrage ratio 50 %. With these values the results are: | Time saved | 1 d 4 h | | Daily despatch | 7,500 USD | | Despatch amount | 8,750 USD | ### How to use: Despatch Calculator - Enter your own values: Allowed time, Time used, Daily demurrage, Despatch / demurrage ratio. - Choose the currency; money inputs are converted at an approximate rate. - Results are calculated as you type: Time saved, Daily despatch, Despatch amount. - Check every step of the calculation in the formulas below. ## How is it calculated? - **Time saved** = max(0; [Allowed time] − [Time used]) - **Daily despatch** = [Daily demurrage] × [Despatch / demurrage ratio] ÷ 100 - **Despatch amount** = [Time saved] ÷ 24 × [Daily despatch] ## Other tools running on Laytime and Charter Engine Calculates laytime, demurrage and despatch from NOR, turn time, excepted periods and rates. - [Time Charter Calculator](https://demo.fcrsoft.com/en/maritime/time-charter-calculator) - [Voyage Charter Calculator](https://demo.fcrsoft.com/en/maritime/voyage-charter-calculator) - [ETB Calculator](https://demo.fcrsoft.com/en/maritime/etb-calculator) - [ETC Calculator](https://demo.fcrsoft.com/en/maritime/etc-calculator) - [Port Stay Calculator](https://demo.fcrsoft.com/en/maritime/port-stay-calculator) - [Port Time Calculator](https://demo.fcrsoft.com/en/maritime/port-time-calculator) - [Port Cost Calculator](https://demo.fcrsoft.com/en/maritime/port-cost-calculator) - [Port Call Cost](https://demo.fcrsoft.com/en/maritime/port-call-cost) - [Berth Time Calculator](https://demo.fcrsoft.com/en/maritime/berth-time-calculator) - [Cargo Operation Time](https://demo.fcrsoft.com/en/maritime/cargo-operation-time) - [Laytime Calculator](https://demo.fcrsoft.com/en/maritime/laytime-calculator) - [Laycan Calculator](https://demo.fcrsoft.com/en/maritime/laycan-calculator) FCRSOFT ## FCRSOFT does this for you automatically You don’t need to do the calculations and checks on this page by hand every day. FCRSOFT derives them all automatically from the records entered in the field. - Port events are recorded as a timeline. - Laytime, demurrage and despatch are calculated from port events. - Port costs are linked to the voyage and the charter party. [Open the live demo](https://demo.fcrsoft.com/login.php?package=voyage) [Explore the Voyage & Chartering package](https://demo.fcrsoft.com/demo/voyage?hl=en) [demo.fcrsoft.com](https://demo.fcrsoft.com/login.php?package=voyage) ## Frequently asked questions How is Despatch Calculator calculated? Calculate time saved and despatch money (usually half demurrage) when loading finishes before allowed time. The calculation uses Laytime and Charter Engine: Calculates laytime, demurrage and despatch from NOR, turn time, excepted periods and rates. How is Despatch amount found? Despatch amount = [Time saved] ÷ 24 × [Daily despatch]. With the example values (Allowed time 120 hours, Time used 92 hours, Daily demurrage 15,000 USD, Despatch / demurrage ratio 50 %) the result is 8,750 USD. Worked example: Despatch Calculator Example values: Allowed time 120 hours, Time used 92 hours, Daily demurrage 15,000 USD, Despatch / demurrage ratio 50 %. Time saved: 1 d 4 h; Daily despatch: 7,500 USD; Despatch amount: 8,750 USD. Is Despatch Calculator free? Yes. The tool is free, needs no sign-up and runs in your browser; the data you enter is not stored. Can FCRSOFT do this calculation automatically? FCRSOFT derives the laytime calculation from port events automatically and links it to the charter party. You can try the Voyage & Chartering package in the live demo without installing anything. Which currency can I calculate in? Choose one of 28 currencies in the currency selector; monetary inputs are converted at an approximate rate. To use your own rate, enter the amounts directly. ## Related tools and guides [Free tool ### Demurrage and Despatch Calculator Find net demurrage or despatch by calculating allowed and used time at load and discharge ports separately or together (reversible). Open the tool](https://demo.fcrsoft.com/en/maritime/demurrage-despatch-calculator) [Free tool ### Laytime Calculator Calculate allowed time, time used and demurrage or despatch from cargo, daily loading rate, NOR and turn time. Open the tool](https://demo.fcrsoft.com/en/maritime/laytime-calculator) [Guide ### What Is Laytime and How Is It Calculated? Laytime in voyage charters, NOR, turn time, SHINC/SHEX terms, excepted periods and demurrage/despatch calculation with examples. Read the guide](https://demo.fcrsoft.com/en/maritime/what-is-laytime)