⚓ Sea Service Calculator
Calculate your cumulative sea time across multiple vessels. Generate a professional record for your license applications.
Add Ship Entry
Service Record
How to Use & Why It Matters
How it Works
Step 1: Enter your ship's name and select your exact Sign On and Sign Off dates. The tool automatically handles the day counts, typically inclusive of both dates.
Step 2: Click Add Entry to save the period to your running record. You can manage unlimited vessel entries for your entire sea career.
Step 3: Review your Total Accumulated Sea Service at the top. It provides a breakdown in years, months, and days for professional reference.
Step 4: Once complete, use the Export Report section to generate a personalized PDF or high-quality JPEG document.
Professional Utility
- License Applications: Precise sea time is critical for COC renewals and upgrades (MCA, USCG, DG Shipping, IMO standards).
- Sea Service Record: Maintain a clean, digital backup of your physical discharge book and service certificates.
- Career Planning: Know exactly how many more days you need for your next rank or certification milestone.
Pro Tip
“Always verify your Sign Off dates against your official stamps before exporting your final report.”
Maritime Calculator
Sea Service Record
Generated: 28 February 2026
https://maritimecalc.com/
Seafarer Name:_________________
Current Rank:_________________
| Ship Name | Rank | Sign On | Sign Off | Service |
|---|
Total Sea Service:
0 Years, 0 Months, 0 Days
(Total accumulated days: 0)
https://maritimecalc.com
Note: For reference only.