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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 paceAdd bodyweight and age context to a 2k, 5k or 6k result before coaches review a school, club or masters testing block.
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 pacesChart likely times from 500m to marathon distance and see how training bands sit around them during the season.
Show the chartUse a 5k, 6k, 10k or 30-minute effort to project a 2k, then read the confidence range and target-pacing plan.
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 valueGet a Concept2 drag-factor range based on weight, experience and intended work, with guidance on damper-setting myths.
Check drag factorUse the Concept2 weight formula to compare lightweight and heavyweight 2k results on a more even basis.
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 DPSTranslate PM5 kilojoules into estimated calories with the Concept2 calculation, or work back from calories to energy.
Translate the energyEstimate rowing VO2max from 2k time, body weight and sex through the Klusiewicz 2016 regression, with benchmark bands.
Check VO2maxCompare a rowing /500m split with running pace per kilometre or mile. Two sourced methods make the limits clear.
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 formulas behind these pages also support Row HQ, including club use at Oundle Town Rowing Club. A public tool is right for a single check. Small club volunteers need software when results must stay attached to members, coaches and training records through a busy summer programme.
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.
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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