Padi Rdp Table Metric Pdf <2K 2024>
The PADI Recreational Dive Planner (RDP) metric version is a set of three tables used to calculate no-decompression limits (NDLs) and manage nitrogen levels for scuba diving. Core Tables Overview
The metric RDP is divided into three interconnected sections:
Table 1: Single Dive Planning – Provides NDLs for depths up to 42 meters and assigns a Pressure Group (PG) letter (A–Z) based on dive time and depth.
Table 2: Surface Interval Credit – Shows how your Pressure Group changes as you off-gas nitrogen during a surface interval (SI).
Table 3: Repetitive Dive Planning – Gives the Adjusted No-Decompression Limit (ANDL) and Residual Nitrogen Time (RNT) for subsequent dives based on your current Pressure Group. Critical Rules for Use
To ensure safety, you must strictly follow these table rules:
Round Up Only: If your exact depth or time is not listed, always use the next higher (deeper or longer) value.
Safety Stops: Required if you dive to 30 meters or deeper, or if your dive ends in a gray box on the table.
Descent/Ascent Rates: Maintain a steady descent rate and an ascent rate no faster than 18 meters per minute. Padi Rdp Table Metric Pdf
The "Rule of 9": It is strongly recommended to make each successive repetitive dive shallower than the one before it.
WXYZ Rule: If you end a dive in pressure groups W or X, a minimum surface interval of 1 hour is required. For Y or Z, the minimum is 3 hours. Key Planning Metrics PADI RDP TABLE - Table Met | PDF | Scuba Diving - Scribd
The PADI Recreational Dive Planner (RDP) Metric Table, developed by DSAT, is a tool for managing nitrogen absorption during no-stop dives up to 40 meters, utilizing pressure groups from A to Z to calculate residual nitrogen. The system consists of three tables for managing, calculating, and planning repetitive dives, requiring divers to always round up depth and time to the next greater value. View the PADI Metric RDP PDF provided by A1 Scuba Diving.
Reading Dive Tables : 5 Steps (with Pictures) - Instructables
I cannot directly provide a PDF file or a downloadable link for the PADI RDP (Recreational Dive Planner) table. The PADI RDP is copyrighted material owned by PADI (Professional Association of Diving Instructors).
However, I can explain how to find the official metric version and how to use the table, or provide a text-based representation of the standard Recreational Dive Limits.
Using the PADI RDP (Metric Overview)
The standard PADI RDP is used to calculate No-Decompression Limits (NDL) and Pressure Groups.
The Ultimate Guide to the PADI RDP Table Metric PDF: How to Download, Read, and Use It
If you are enrolled in a PADI Open Water Diver course or are a certified diver looking to return to basics, you have likely encountered the acronym RDP. Standing for Recreational Dive Planner, this table is the cornerstone of dive safety. For divers using the metric system (meters and minutes), finding the correct PADI RDP Table Metric PDF is essential for planning no-decompression dives. The PADI Recreational Dive Planner (RDP) metric version
However, there is a lot of confusion online about where to find legitimate PDFs and how to read them. In this article, we will explain everything you need to know about the PADI RDP Table Metric system, why you should be cautious downloading PDFs online, and how to properly use the eRDP or plastic table for your next dive.
2. Outdated and Incorrect Data
The most dangerous risk is using an old scan. PADI has revised the RDP several times (RDP 1.0 vs. RDP 2.0 / eRDP). The original tables (pre-2000) had slightly different NDLs for deep dives. Using an outdated PDF could cause you to surface with unmanaged DCS risk.
5. User Interface (UI) & Experience (UX)
2.3 Table 3 – Repetitive Dive / Residual Nitrogen Time
- Input: New planned dive depth & Letter group after surface interval.
- Output: Residual nitrogen time (RNT) to add to your actual bottom time, plus Maximum allowable bottom time for the repetitive dive.
- Layout: Rows = depth (same as Table 1). Columns = letter groups.
Conclusion: Should you hunt for the Padi Rdp Table Metric Pdf?
The short answer: No. You will waste hours searching for a file that either doesn't exist legitimately or is too poor quality to trust your life with.
The practical solution: Spend the $15 to $30 on the official PADI eRDP (digital) or the waterproof plastic table. Your safety is worth more than the price of a few tank fills. If you are simply studying for an exam, your dive instructor likely has a high-resolution digital copy they can share specifically for classroom use.
Remember: Dive tables are life-support equipment. Use the metric system properly—calculate your meters and minutes carefully—and always plan your dive, then dive your plan.
Disclaimer: This article is for educational purposes. PADI, RDP, and Recreational Dive Planner are registered trademarks of PADI. Always seek formal training from a certified professional before diving.
The digital glow of the dive computer was convenient, but Elias preferred the tactile reliability of the plastic PADI Recreational Dive Planner (RDP) table. Seated on the sun-bleached deck of the Blue Manta
, he smoothed out the metric version of the chart, its rows of depths and columns of times forming a familiar grid of safety. Input: New planned dive depth & Letter group
He was planning a second dive at the "Cathedral," a jagged underwater cavern. His first dive had been to 18 meters for 45 minutes, a depth typically associated with PADI Open Water
limits. Sliding his finger across Table 1, he found his pressure group:
"Still off-gassing?" asked Sarah, the divemaster, leaning over his shoulder.
"Always," Elias replied. He consulted Table 2. He’d been on the surface for exactly 90 minutes. Following the "R" row to the 1:30 interval, he saw his new pressure group was 60-minute compartment
in his body was slowly releasing nitrogen, but he wasn't "clean" yet.
For his next dive, he wanted to hit 12 meters to photograph the pygmy seahorses. He flipped the card to Table 3. At 12 meters, starting as a Group F diver, his Residual Nitrogen Time (RNT) was 36 minutes. no-decompression limit
for 12 meters is 147 minutes," he muttered, doing the mental math. "147 minus 36... I have 111 minutes of Adjusted No-Decompression Limit."
Sarah nodded, impressed. "Old school. Most people just wait for the 'clear' beep on their wrist."
"The table doesn't run out of batteries," Elias said with a grin. He tucked the RDP into his BCD pocket. He knew exactly how long he could stay in the blue, guided not just by a sensor, but by the precise, rhythmic math of the metric table. of how to read the RDP or a link to a printable metric PDF
8. Quick Rules (Metric RDP)
- Use actual depth (rounded up to next whole meter if needed).
- Use actual bottom time (minutes).
- Surface interval < 10 min → treat as same dive.
- Surface interval > 12 hrs → no residual nitrogen (Group A).
- Never exceed Table 1 limits.
- Plan ascent rate: 18 m/min or slower (PADI standard).









