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Use one clear page for the calculations that come up between erg testing and summer racing. These 13 browser tools follow Concept2 split conventions. Row HQ also uses their core maths inside its coach tools when a club needs to work beyond one athlete.
The page covers 13 common rowing calculations without a login. Check watts from a /500m split, create training ranges, adjust an erg score for weight, or estimate a 2k from another test. Everything runs in the browser and stays metric, making it practical for school squads, masters crews and small clubs through the summer racing season.
Testing and summer race pace
Give the calculator a /500m pace and get watts, calories and finish times. It also starts from power, distance or total time.
Check the paceCompare raw erg scores with Concept2 weight-adjusted times and an illustrative age adjustment. Includes example bands and clear limits.
Review a scoreConvert a recent 2k split into UT2, UT1, AT, TR and AN bands, including rate guidance and interval suggestions for training.
Build the pacesCompare predicted splits from 500m to half marathon and equal-pace reference times. Includes illustrative training-zone bands and printable tables.
Show the chartEstimate a 2k time from a longer test. Compare three model scenarios and a target split time, then check the estimate against real results.
Project a 2kErg power and setup
Change watts into /500m pace or run the conversion in reverse. A reference table helps volunteers set power across several ergs.
Convert the valueChoose an illustrative starting drag factor, then check the monitor reading and stroke feel. Explains why the damper setting is not a fixed drag value.
Check drag factorCalculate a Concept2 weight-adjusted erg score from body weight and actual time. Keep the original result for online rankings.
Adjust the timeTraining and off-water work
Find distance per stroke from rate and pace. You can also enter DPS and rating to calculate the matching split.
Find the DPSConvert mechanical work in kJ and session duration into estimated Concept2 monitor Calories. Includes the inverse calculation and worked examples.
Translate the energyEstimate VO2 max from a maximal 2k test, body weight and training level using Concept2 equations. Includes worked examples and model limits.
Check VO2maxCompare rowing and running pace using two illustrative models. Choose the intended effort and work duration before using a substitution.
Compare row and runA Concept2 ergometer supplies the score, but the useful follow-up might be watts, another distance or a training band. Those conversions often live in a coach's own spreadsheet. The "erg pace calculator" puts the common answers in reach before a session, without ads getting between the rower and the number.
The conversion tools explain the Concept2 formulas they use. Predictions and training suggestions also state their assumptions. Keep calculated results beside real session data, as clubs such as Oundle Town Rowing Club do when reviewing progress. A calculator helps with one result; your club records provide the wider context.
Tell us about a repeated boatshed calculation through the contact form. Suggestions from rowers and coaches are welcome and will shape which free tool we consider next.
These calculators stay deliberately small. Each one answers a single rowing question. Row HQ handles club management across training, coaches and administration when volunteers need shared records instead. That distinction matters in a small club, where the same people often organise sessions and keep the member information current.
Check the price for your club, then review training sessions, coach features and the admin area. Read the Oundle Town RC story for a working club example. The spreadsheet guide covers the alternative many volunteer teams know.
Start with the result you have. The erg pace calculator converts /500m pace, watts, calories and finish time. The erg score calculator adds age and weight context. Use the training pace calculator to turn a 2k into session bands. None of them requires an account.
Yes. All 13 tools are open in the browser with no signup or payment. Rowers can make individual checks throughout the summer racing season. The paid Row HQ product is club management software for training, coach and admin work, not a gate placed in front of the calculators.
The Concept2 power relationship is watts = 2.80 / (split_seconds / 500)^3. Estimated calories follow kcal/hr = (watts * 4) + 300. Distance projections use the Riegel equation T2 = T1 * (D2 / D1)^1.06. Each result page names the method behind its answer.
Yes. Open them in any current phone browser at the erg, in the boatshed or beside the water. The tools use metres and the worldwide /500m split convention. No app install or club login is required for a volunteer or rower to check a number.
Use a calculator for one result. Choose club software when training information, coach access and administration must stay connected across the membership. Row HQ supports that broader work for volunteer-run clubs. Its public tools still handle the quick calculations made during erg blocks and summer racing.
Move from numbers to language in the Row HQ rowing glossary. It explains an ergometer, a rowing shell and a scull. Read the overview of rowing boat types before the entries on a regatta, a coxswain and catching a crab.
Choose the rowing calculator that matches your question. A pace calculator converts distance, total time and split time. A score calculator applies a comparison method to a recorded result. A pace predictor estimates a different test distance. Keeping those jobs separate makes the output easier to use in a training session.
Choose a tool from the input you already have. Split time means the time per 500 metres. The pace tool converts split time into finish time; the chart compares that split time across distances. The score tool compares raw and adjusted results. Use a completed test for training targets and keep estimated results labelled as estimates.
| Your question | Start here | Have ready |
|---|---|---|
| What split time do I need? | Erg pace calculator | Distance and total time |
| What power does that split require? | Watts to split converter | Watts or average 500m split |
| How should I compare scores? | Erg score calculator | Raw time, distance and body weight |
| What pace should I train at? | Training pace calculator | A recent 2k test |
| What should the club check before rowing? | Rowing risk assessment | Venue, participants and local controls |
These tools explain their formulas and assumptions on the individual pages. Calculated examples are not official rankings. For a competition comparison, use a current ranking filtered by distance, age group and category, and submit your raw score.
Start a pace calculation in the erg pace calculator then use the result to check your target finish time.
For endurance-based estimates, open the 2k prediction calculator and enter a completed test.
Before an on-water session, review the rowing risk assessment tool with the person responsible for club safety.
Method and further reading: Concept2 pace calculator and formulas
Start free with up to 20 members.
Use every Row HQ feature with your own boats, crews and sessions. No card. No time limit.
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