How many seconds and weeks are left before the next variation
List your variations from easiest to hardest, then enter the step you are on, your current hold and the hold time that moves you up. The tool returns the steps remaining, the time still needed on each step and the cumulative weeks to your target step. Weeks are rounded up because the target has to be reached. Switching variation drops your hold, so the assumed hold right after a switch is an input too.
The 60-second threshold and the weekly gain are common practice, not authoritative standards. As of October 2026 no published chart defines plank variation progression, so both stay as inputs. The week count is not a forecast: it extends your own assumed gain in a straight line, and real progress is neither linear nor free of plateaus.
This page does not size sets, hold time per set or total time under tension; it covers the switch between variations only. It assigns no grade or score. If your hips sag, fix the position before adding time, and see a clinician for back or neck pain.
Frequently Asked Questions
Sixty seconds is common practice, not an authoritative standard. Change the threshold field and the whole calculation follows your value.
They extend your own assumed weekly gain in a straight line. It is not a forecast, and real progress plateaus rather than running linearly.
No. It covers the switch between variations only and leaves set structure and time under tension out.