A 315 sits just above the average for most graduate fields. That makes it workable, and it makes the next few points unusually cheap.
You are slightly ahead of the field averages and well short of the ceiling. That combination makes a 315 one of the more improvable scores on the scale, if you have a reason to improve it.
Solid rather than strong. A 315 is ahead of most field averages, and close enough to the next band that a few points still visibly changes it.
The total is a convenience, not a measurement. ETS scores Verbal and Quant separately and never publishes a combined percentile — a point our GRE percentile calculator makes at length.
At a 315 the spread is enormous: depending on how the points are distributed, one of your sections could sit anywhere from the 12th to the 99th percentile. That is the range a single total is hiding.
Split evenly, a 315 is 158/157, which ETS puts at the 77th percentile for Verbal and the 42th for Quant. That gap is not an error; the Quant distribution is simply far more crowded at the high end.
No discipline in the ETS tables averages as high as a 315. Physical Sciences comes closest at 314, and it is still well short.
A field average is a blunt instrument: it blends elite departments with open-enrolment ones. Use it to see whether your score is in the conversation, then look up the two or three programmes you actually care about.
Do not study "the GRE" from a 315. Study the section that is costing you, which for most people is not the one they find least pleasant.
The arithmetic favours Quant on an even split. Its percentile is the lower of the two, which means there is more room per scaled point than on the other section.
The stack that works: targeted verbal or quant drilling, a two-month plan, and timed practice tests to confirm the gains survive the clock.
Verify the shape before you stop thinking about the test. The GRE percentile calculator turns your two scaled scores into the two percentiles a committee will see.
Check your section percentilesWorth considering, with a condition: name the section and the target before you book. A 315 responds well to focused work and poorly to another general pass through the material.
Look up your field's average Verbal and Quant, compare them against your two scores rather than your total, and go again only if one is clearly behind.
Work out your field's average Verbal and Quant, then aim at the specific gap. A general retake at this level tends to reproduce the same score.
Only with a named target. Compare each section against your field's average rather than the total, and go again if one is clearly behind.
Above the 313 engineering average, yes. The number that matters more there is your Quant score on its own, against 163.
For most programmes the split matters more. Departments read the section relevant to their field, and at a 315 the published section figures span the 12th to the 99th percentile depending on distribution.
ETS publishes no combined percentile. What it does publish, for an even 158/157 split, is the 77th percentile on Verbal and the 42th on Quant.