Treadmill Pace Calculator

1. Choose direction

Tap Speed → Pace when the console already shows mph or km/h and you want minutes per mile (or per kilometer). Tap Pace → Speed when a plan, watch, or coach gave you a pace and you need the belt number to tap.

2. Enter a number

Type a speed such as 6.0 (mph), or a pace such as 10:00 (min/mile). Speeds take decimals. Paces take m:ss with a colon so the field is not read as a raw speed.

3. Read the result, or hit Copy

The dark panel updates as you type. Copy puts the output on the clipboard for a note or a watch workout. Use the Units toggle to switch between mph/min·mile and km/h/min·km.

That is the whole loop. Incline is optional and labeled Estimate — leave it at 0 unless you want a grade-adjusted reference. The chips on the calculator (Easy 12:00, Steady 10:00, Tempo 8:30, Fast 7:00) load a common training pace into the same fields; they do not start the machine. You still set the console yourself.

Why gyms show speed and plans show pace

US treadmills print miles per hour on the console. Training plans print minutes per mile. That mismatch is why people stand on the rails doing 60 ÷ 6 in their heads. The arithmetic is one line: sixty minutes in an hour, divided by the miles you cover in that hour, is the time you spend on each mile. If the belt is honest, 6.0 mph is 10:00 per mile on the deck and on the track. There is no treadmill-specific fudge in the core number.

Going the other way is the same formula flipped. A 9:30 mile is 6.3 mph. A 7:00 mile is about 8.6 mph. Type the pace with a colon (7:00, 8:30, 10:00) so the input is not treated as a speed. A bare 730 is not a reliable 7:30.

Rounding matches the console

This page rounds pace to the nearest second and speed to one decimal, which is how most gym machines display mph. Seven miles per hour is 8:34 per mile: 60 ÷ 7 = 8.571… minutes, and 0.571 × 60 is about 34 seconds. If your deck only offers 0.1 mph steps, pick the closest speed and live with a second either way. Do not chase hundredths the console cannot set.

The Tempo chip is 8:30, which is not a round mph. 60 ÷ 8.5 ≈ 7.06, so the belt lands on 7.1 mph after 0.1 rounding. Fast 7:00 is 8.6 mph. Easy 12:00 is a round 5.0. Steady 10:00 is a round 6.0. Those four chips exist because they are the paces US club plans actually write down, not because they are the only useful speeds.

Metric is the same math

Minutes per kilometer equal sixty divided by kilometers per hour. 10 km/h is a 6:00 kilometer. 12 km/h is 5:00 per kilometer. Toggle Units rather than converting in your head. Mixing an mph pace with a km/h belt is the usual way an easy run becomes a tempo by accident. If the console never shows miles, switch units here or use the dedicated kilometer converter linked in the FAQ.

Incline is an estimate, not a new speed

Grade does not change how fast the belt is moving. It changes how hard that speed feels. The Incline % field (0 to 15, steps of 0.5) feeds a flat-equivalent pace tagged Estimate. Treat it as a training reference — not a lab VO2 number, not race advice, not medical advice. Many runners add about 1% on faster work to stand in for outdoor air resistance. Easy jogs often stay at 0%. If you are not sure, leave incline at 0 and trust the speed-to-pace line.

Copy is for the output only. The machine still needs you to press the speed keys. Holding the rails shortens your stride and makes the belt speed a lie, so set the number, let go, and run the pace you asked for.

How to read the table on the gym floor

Walk work sits at 3–4 mph (20:00 to 15:00). That is warm-up, cool-down, and the recovery shuffle between repeats. Five mph (12:00) is the usual walk–jog border; the Easy chip loads it. Six mph is the default American easy run because the display lands on a round 6.0 and you can talk in sentences. Seven mph is a steady run for many club athletes and 8:34 per mile — close to tempo, not quite the 8:00 threshold workout.

Tempo at 7.5 mph is the 8:00 mile, the speed most plans mean when they say threshold. Eight mph is 7:30. Nine and ten mph (6:40 and 6:00) are interval territory for most people: use them in repeats, not for a full easy hour. If a plan says “10:00 easy,” you want 6.0, not 10 mph. If it says “8:00 tempo,” you want 7.5, not 8.0. Those two mix-ups are the ones that wreck a week of training.

Warm up at a walk (3–4 mph) for a few minutes, then jump to the target speed rather than creeping 0.1 at a time for ten minutes. When the plan is in kilometers, hit Units so the same relationship shows min/km. Confirm the number in the tool above before you lock the belt — the table is a glance, the converter is the source for odd paces such as 9:15 or 8:20.